Key Lime Pie Recipe with Pecan Graham Cracker Crust
Article & Photos by: allie albanese
Tart, sweet, creamy, and crunchy! This easy Key Lime Pie recipe with pecan graham cracker crust is everything you want in this classic American dessert.
A few years ago, I renovated my grandfather’s house on St. Simons Island, GA — the place he retired to after a long Navy career. Honoring his memory was very important to me, and one way I did that was by planting a key lime tree in the garden. The reason? A little family history and a whole lot of Key Lime Pie!
My grandfather was stationed all over the world, but one of his favorite stations was Key West, Florida. He loved living by the water, the slower pace of life, and, being the foodie he was, the local cuisine. Which meant he had no choice but to develop a love for the Keys’ famous Key Lime Pie — a love he passed on to my mom and eventually to me. So when my tree produced its first big harvest, there was only one thing to do: make pie!
As a Southern gal who’s eaten more than my fair share of this citrus pie, I can tell you not all recipes are created equal. Many are too sweet, some have a weirdly runny or gelatinous texture, and too often, the crust just doesn’t hold up. So after a lifetime of very serious pie-eating research 😉, I’ve nailed down my must-haves for the perfect slice:
✔ A citrusy, creamy, more-tart-than-sweet filling
✔ A not-too-thick and not-too-thin graham cracker crust with pecans
✔ A silky, lightly sweetened whipped cream topping
My mom is an even tougher critic than I am, so when she requested a Key Lime Pie with pecan graham cracker crust for her birthday, I knew I had my work cut out for me. But after lots of trial and error, I finally landed on the perfect homemade Key Lime Pie recipe. Tart, sweet, creamy, and crunchy – this traditional Key Lime Pie checks alllll the boxes!
What Is Key Lime Pie?
Key Lime Pie is a classic American dessert with a creamy, tangy filling made from key limes, egg yolks, and sweetened condensed milk. It’s traditionally baked in a graham cracker pie crust and topped with either fresh whipped cream or meringue.
Authentic Key Lime Pie gets its unique flavor from key limes. However, since fresh key limes can be hard to find outside of Florida, many Key Lime Pie recipes use bottled key lime juice or substitute Persian limes, the more common variety found in most grocery stores.
Some modern Key Lime recipe variations add ingredients like cream cheese, coconut milk, or sour cream to the filling, or swap the graham cracker crust for something less traditional. But that’s not the version I grew up with! To me, Key Lime Pie isn’t a true Key Lime Pie without a citrus-forward filling and a buttery homemade graham cracker crust with pecans!
What does Key Lime Pie taste like?
Key Lime Pie is tart, creamy, and just the right amount of sweet! The key lime juice gives it a bright, citrusy punch, while the sweetened condensed milk adds sweetness to balance the tang. The texture is silky and custard-like, while the graham cracker crust adds a buttery crunch. A layer of whipped cream or meringue on top rounds it out with a light, airy touch.
What is the Origin of Key Lime Pie?
As a Southerner, suggesting that the traditional Key Lime Pie recipe originated anywhere other than the Florida Keys is unthinkable, especially since it was named Florida’s official state pie in 2006! But not everyone agrees.
One theory, introduced by food writer Stella Parks in her 2018 cookbook BraveTart: Iconic American Desserts, suggests that the Borden milk company may have developed the first Key Lime Pie recipe to promote sweetened condensed milk.
This claim naturally sent Florida residents into a tizzy, with native Floridian David Sloan, co-founder of the annual summer Key Lime Festival and author of The Key West Key Lime Pie Cookbook, leading the charge to prove Parks wrong. Sloan says that the pie was invented by a Key West fisherman in the late 1800s and later refined by a cook named “Aunt Sally” who worked at the Curry Mansion Inn in Key West.
No matter which story you believe, one thing’s for sure: Key Lime Pie and the Florida Keys go hand in hand, and it’s been a staple there for well over a century!
So Then Why Was It Called Key Lime Pie?
Despite the debate surrounding the origin of Key Lime Pie, the name of this tart pie comes from the key limes used in the filling. These limes grow throughout Florida and give the pie its signature flavor. Since the dessert was created (or at least popularized!) in the Keys, it naturally became known as Key Lime Pie.
What is the Difference Between Key Limes and Regular Limes?
At first glance, key limes and regular limes (also known as Persian limes) might seem interchangeable, but they’re actually a little different from each other.
SIZE AND APPEARANCE: Key limes are smaller, rounder, and have thinner skin that starts green and turns more yellow as they ripen. Regular limes are larger, more oval-shaped, and have thicker, bright green skin that stays green even when fully ripe.
JUICE AND FLAVOR: Key limes are tart and slightly floral, with higher acidity that gives them a tangier taste. Their juice is more intense, even though they yield less of it due to their small size. Regular limes are milder, less acidic, and have a more straightforward lime flavor which makes them more versatile for general cooking.
AVAILABILITY: Key limes are harder to find since they only grow in certain regions, making them more expensive and less common in grocery stores. Regular limes, on the other hand, are widely available year-round and are the standard lime found in most supermarkets across the country.
For the best Key Lime Pie recipe, fresh key lime juice is the #1 choice. But if key limes aren’t available, Persian lime juice is the next best thing — it won’t be exactly the same, but it’ll still make a great pie!
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Key Lime Pie Ingredients
I’ve said it before and I’ll say it again – when it comes to Key Lime Pie, I’m all about the classic style! So if you want that traditional, tangy Key Lime filling like the delicious Florida Key Lime Pies you’ll find in Key West, here are the simple ingredients you’ll need:
- FRESH LIME JUICE OR KEY LIME JUICE: Key lime juice gives this pie its signature tartness and delicious flavor. Fresh key limes are best, and you’ll need about 12-15 limes to get ⅔ cup of juice. But if you can’t find real key limes in your local grocery store, regular limes work too – you’ll need about 5-6 for ⅔ cup of lime juice. Bottled juice is another option, and if you go that route, Nellie & Joe’s Key West Lime Juice is my favorite brand.
- LIME ZEST: A little zest goes a long way! It intensifies the lime flavor and adds extra aroma.
- EGG YOLKS: A couple of egg yolks help thicken the filling and create that custard-like, creamy texture.
- SWEETENED CONDENSED MILK: This unique canned milk provides sweetness and creaminess, both of which are essential for the classic Key Lime Pie flavor and texture.
- HEAVY WHIPPING CREAM: Whipped cream is the perfect finishing touch, adding a light and airy contrast to the punchy citrus filling.
- SUGAR: Just a bit of sugar sweetens the topping. Either white sugar or confectioners’ sugar will do the trick.
What Is The Best Crust For Key Lime Pie?
For authentic Florida Key Lime Pie, a homemade graham cracker crust with pecans is my top choice. Especially if it’s the first time you’re trying this easy pie! It’s simple to make and adds the perfect buttery crunch to complement the tart filling. To make it, the only crust ingredients you need are graham crackers, pecans, a little sugar, a dash of cinnamon, and melted butter.
That said, if you prefer something different, a traditional pie crust or a cookie crust tastes great, too. And if you don’t have time to make a homemade crust, a store-bought crust will work just fine!
PS: The same goes for the topping. I love whipped cream because it keeps the pie light and creamy, but if you want to use up those leftover egg whites, a fluffy meringue is another great option.
How to Make Key Lime Pie
Making a deliciously creamy Key Lime Pie with condensed milk is simple and comes down to three key steps: preparing the crust, mixing the filling, and adding the topping. Simply follow these steps for a perfect pie every time.
Make the Key Lime Pie Shell
To make a graham cracker crust for Key Lime Pie, start by preheating your oven to 350° F (175° C).
In a mixing bowl, combine the graham cracker crumbs, chopped pecans, dark brown sugar, granulated sugar, and cinnamon. Stir until well combined. If you prefer, use a food processor to pulse the ingredients together and break down any large chunks. Just be careful not to over-pulse if you want to retain a bit of texture from the crackers and nuts as I do.
Pour in the melted butter and stir until the mixture resembles wet sand.
Press the coarse crumbs firmly into the bottom and up the sides of a pie plate. (Any regular or deep dish 9-inch pie plate or 10 inch pie pan will do.) For an even crust, use a flat-bottomed measuring cup to compact the crumbs.
Bake for about 8-10 minutes until lightly golden brown. Let the crust cool on a wire rack to room temperature while you prepare the filling, but leave the oven on.
Make the Key Lime Pie Filling
In a large bowl, zest limes, then whisk the key lime zest with 4 large egg yolks. Beat with an electric mixer until thick and pale in color.
Add the sweetened condensed milk, and beat again until the filling thickens.
Add the key lime juice (or regular lime juice) and whisk the filling ingredients together until smooth.
Pour mixture into the cooled crust and bake at 350°F (175°C) for about 10-11 minutes. The bake time may vary, so keep a close eye on it because you don’t want the pie to brown.
Cool the baked pie completely before adding the topping.
How to Tell When Key Lime Pie is Done:
Your Key Lime Pie is ready when the edges are set and the center wobbles just a bit when you gently shake the pie dish. It will continue to firm up as it cools, so don’t worry if it looks a little jiggly when it comes out of the oven. Just be careful not to overbake because too much time in the oven can cause the filling to crack.
Make the Topping
In a medium bowl, combine the heavy cream and sugar. Using the whisk attachment on your electric mixer, beat on medium-high speed until soft peaks form.
Spread the whipped cream over the top of the pie once it has cooled, leaving a slight border around the edges of the pie to show off the pale yellow color of the filling. Garnish with additional lime zest and/or thin lime slices wheels for extra color and flavor.
Chill the pie for about 2-3 hours before slicing it with a sharp knife.
Does Key Lime Pie Need to be Refrigerated?
Yes, Key Lime Pie should be refrigerated. The filling contains egg yolks, so it needs to be kept cold to stay fresh. After baking and cooling, cover the pie and store it in the fridge for up to three days. For the best texture, serve it chilled.
Can You Freeze Key Lime Pie?
Yes, you can freeze graham cracker crust Key Lime Pie for up to about three months! Perfect as a make-ahead dessert, freezing extends its shelf life and allows you to enjoy this classic treat any time you crave a slice.
For best results, wrap the cooled pie tightly in both plastic wrap and aluminum foil before freezing to prevent freezer burn. When ready to enjoy, thaw it overnight in the refrigerator. The texture might be slightly softer after freezing, but the flavor will still be great.
Best Key Lime Pie Recipe: The Wrap-Up
Hands down one of my all-time favorite pies, this easy Key Lime Pie recipe strikes the perfect balance between sweet and tart. With its tart, creamy filling, buttery graham cracker crust, and lightly sweet whipped topping, this classic American dessert is always a hit.
So the next time you’re entertaining guests at a dinner party or just craving something sweet, this classic Key Lime Pie recipe is the perfect ending to any meal and is bound to become a family favorite!
Did You Make This Recipe for Key Lime Pie?
\Let me know in the comments if you tried this authentic Key Lime Pie recipe or if there are any other key lime desserts you want me to share! I’m always up for swapping a great recipe, especially when it comes to sweets!
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This article was originally published in September 2022 and has been updated with new photos and additional information. The recipe itself, however, remains unchanged.
A writer and photographer, Allie Albanese is the founder and curator of Parched Around the World. Here she seeks to tell stories about the intersection of food, drinks, cultures, and traditions in places near and far.
Allie holds a Master’s degree in Journalism from American University and for more than a decade she has worked as a freelance journalist covering wine, cocktails, food, and travel for various publications across the United States and abroad.
If you want to know the way to Allie’s heart, give her a giant bag of peanuts or a jar of peanut butter and she’ll be your best friend for life!
Disclosure: Articles throughout Parched Around the World may contain affiliate links, which means if you purchase something using one of them, I may earn a small commission for sharing items I personally use and love. This comes at no cost to you, but helps support Parched and allows me to keep this website running! For more information, please see my full Privacy Policy.
Key Lime Pie with Pecan Graham Cracker Crust
- Total Time: 55 minutes
- Yield: 6-8 slices
Description
Tart, sweet, creamy, and crunchy! This easy Key Lime Pie recipe with pecan graham cracker crust is everything you want in this iconic American dessert.
Ingredients
FOR THE CRUST:
- 1 ¾ cups ground graham cracker crumbs (about 13–14 full cracker sheets)
- ½ cup chopped pecans
- 2 tablespoons dark brown sugar
- 1 tablespoon granulated sugar
- 1 teaspoon cinnamon
- 8 tablespoons butter, melted
FOR THE FILLING:
- 1 ½ tablespoons lime zest
- 4 large egg yolks
- 1 14-ounce can of sweetened condensed milk
- ⅔ cup fresh key lime or lime juice (squeezed from about 12–15 key limes or 5–6 regular limes)
FOR THE TOPPING:
- 1 cup heavy whipping cream
- 2–3 tablespoons white sugar or confectioners’ sugar, to taste
- Lime zest to garnish (optional)
Instructions
FOR THE CRUST:
- Heat oven to 350℉ (175℃).
- Combine graham cracker crumbs, chopped pecans, dark brown sugar, granulated sugar, and cinnamon in a medium bowl. Stir until well combined and no sugar clumps remain.
- Add melted butter and stir until the mixture is evenly coated.
- Press the mixture into the bottom and up the sides of a pie dish. Try to press it as evenly as possible so that the crust bakes uniformly.
- Bake crust on the middle rack for about 8-10 minutes or until lightly browned.
- Set on a wire cooling rack while you prepare the filling. Leave the oven on.
FOR THE FILLING:
- Zest limes into the bottom of a medium bowl until you have 1 ½ tablespoons.
- Add egg yolks to the zest and beat with an electric mixer until thick and pale in color, about 6 minutes. (I know this seems like a long time, but trust me!)
- Add sweetened condensed milk and beat again until thickened, about 4 more minutes.
- Whisk key lime juice into the mixture until smooth.
- Pour the filling into the cooled graham cracker crust and bake pie until set, about 10-11 minutes. Keep an eye on it, though, because you don’t want it to get browned on the top or the filling to crack.
- Let pie cool completely before adding the topping.
FOR THE TOPPING:
- Add heavy whipping cream and sugar to a medium bowl and beat on high speed until soft peaks form.
- Spread cream over the top of the chilled pie leaving about an inch margin between the topping and the crust so that the color of the pie filling shows.
- Garnish with a bit of lime zest (optional).
- Chill pie 2-3 hours to fully set before slicing.
Notes
- If using unsalted butter for your pie crust, add a pinch of salt when mixing the dry ingredients together.
- If using a food processor to make the crust, be careful not to over-pulse the ingredients. I think this crust is best when a bit of texture from the graham crackers and pecans remains.
- If fresh key limes aren’t available in your neck of the woods, you can use regular limes or bottled Key lime juice instead. My favorite bottled brand is Nellie & Joe’s.
- If you have any pie leftover — which I highly doubt you will! — loosely cover it with plastic wrap and store it in the refrigerator for up to about 5 days.
- Prep Time: 35
- Cook Time: 20
- Category: Eat
- Method: Bake
- Cuisine: Pies & Tarts
Hi Friends, I’m Allie!
I’m an Italian-German-Southerner with a deep passion for food, drinks & travel. After 15 years in NYC as a Certified Sommelier & cocktail creator, plus a stint in New Zealand learning how to make wine, I’m now back home in Georgia where I blend my love for culinary arts & travel into my work as a writer & photographer. Thank you so much for joining me here at Parched where I look forward to exploring the world together one bite, sip & adventure at a time!
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Nellie and Joe’s isn’t “key lime juice”, it is “lime juice from Key West”.
Thanks for pointing that out. The text should have said “Key West” lime juice, so I’ve now fixed my error!
Excellent recipe. I made your pecan crust too and loved it.
Yay! I love this pie so much and the crust is super versatile. It’s delicious with Fall pies like sweet potato, apple, and pumpkin as well. 😋
Hi, I read your new stuff regularly. Your humoristic style is witty, keep it up!
Why thank you very much, that’s so nice of you to say! I definitely enjoy a good laugh and try not to take myself too seriously. 😀 Thank you so much for being a Parched reader, I truly appreciate your support! 🤍
This recipe is a winner! I made it for Easter and there wasn’t a crumb left. I think it’s the perfect balance between tart and sweet. Glad you spent so much time testing recipes because now I benefit from it!
Woooo hoooo! I’m thrilled this pie was an Easter Sunday success. 😀 Too many Key Lime Pie recipes are overly sweet, so striking the right balance between tart and sweet was a huge priority for me. Very glad you felt it hit the mark, thanks for your nice feedback!
This pie is FABULOUS. Tastes just like the one I had in Key West.
Yessss! I take my Key Lime Pie very seriously, so that is the BEST compliment you could give me. 😄
Hi there to all, I think everyone is getting a lot from this site!
That’s very nice of you to say, thank you! I sure hope Parched readers feel that way. 😀
This recipe was perfect! I have never commented on a recipe before, but after making and tasting this pie, I had to leave a comment 🙂 I have been looking for a key lime pie recipe for quite some time, and since I have never found one that I could get excited about, I have never attempted making one on my own. Like your mom, I happen to be a key lime pie critic lol. There is one restaurant that I found that serves my favorite key lime pie, and it is a rare occasion that I will even try a slice at any other restaurant since I’m usually left disappointed 🙁 This year for my birthday, my daughter decided to attempt making me a key lime pie. I scoured the internet for a recipe that looked like it could be comparable. Pecans in the crust was a must, along with a balance between the sweet-tart flavor as well as not being too dense. Well, my daughter made it yesterday and here we are a day later without a piece left! It was absolutely perfect! Thank you for sharing this delicious recipe! We will definitely be making this again!
Oh my gosh, this comment has me grinning from ear to ear! Thank you, thank you, thank you! I couldn’t be happier to hear that this recipe met your expectations and that it didn’t ruin your birthday. 😆 Once you’ve had a perfect slice of Key Lime pie at your favorite restaurant like you have, it becomes tough to find a comparable one. And Key Lime seems to be one of those pies that SO many people/places get wrong. (I just had a friend visit recently and she ordered a slice at a place here in GA that is “famous” for their KLP and it had gelatin in it…) Like you, I’ve been so disappointed more often than not, which is exactly why I set out to come up with a recipe that came as close as possible to my mom’s favorite. We love this one in our house, so I’m thrilled to know you now love it in yours! And yes, those pecans in the crust are a must. 😀😋 I really appreciate you taking a moment to leave a comment — you have no idea what a boost it gave me to read! Thanks again, and happy belated birthday to you!
Incredible! I stumbled across this recipe trying to recreate my favorite key lime pie with pecan graham cracker crust from a restaurant called Rumba on Long Island, and this recipe absolutely nailed it.
Definitely saving this. Thanks Allie!
Reading this comment put the biggest smile on my face! First, because you found a delicious Key Lime Pie on Long Island (I used to live in NYC and am making note of this restaurant for when I get back to the city and out to Long Island to see family) and second because this recipe tastes how you wanted it to! I love that and SO appreciate you taking the time to tell me. Thank you so much!
I’ve made this pie two times in the past two months to serve dinner guests. It’s delicious and got rave reviews! I was suspicious of the beating times for the eggs and the prep obviously takes longer than the recipe on the bottle of key lime juice, but the results are worth it. I’ve been putting toasted pecans into my graham cracker crusts for ages to get more texture and your recipe popped up when I searched for a KLP with a pecan graham cracker crust! This is one of my favorite desserts. Thanks for the recipe!
I can’t thank you enough for this wonderful comment, Jude! It made me so happy not only to know that you’re enjoying this recipe, but that you love pecans in your crust the way that I do! Great minds. 😁 I take my Key Lime Pie very seriously and totally agree that the extra bit of work is TOTALLY worth it in the end! 😋 Your message is also quite timely because I’m planning to make this pie next week for a friend’s birthday and if time allows I will update the post with new pictures and more thorough information. I’m not changing the recipe because I like it just the way it is, I just want to give this recipe post a total revamp soon. Thanks again for your kind words and for taking the time to leave a comment, it means more to me than you know!