Key Lime Pie

4.99 from 139 votes
160 Comments

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This authentic Key Lime Pie recipe comes straight from Savannah, Georgia. It is smooth and creamy with the perfect blend of tart and sweet.

A slice of key lime pie being removed from the full pie with a pie knife

The Best Key Lime Recipe from Savannah

This Key Lime Pie is smooth, creamy, and perfectly balanced between tart and sweet. I stumbled upon this Key Lime Pie Recipe in a small downtown shop when I was visiting Savannah, Georgia with my friend, Amie. Savannah has got to be one of the most beautiful and charming cities ever. We had so much fun touring the historic city squares, walking along the river, and eating delicious Southern food.

I made this pie for my family when I got home and we can’t get enough of it. It is the best key lime pie recipe! At family birthday parties, key lime pies are often requested over birthday cakes. Thanks to my trip to the Savannah, we now have another favorite family recipe!

Ingredients for Key Lime Pie

Graham Cracker Crust

  • Graham crackers (crushed): For that classic, slightly sweet crust.
  • Butter (melted): Holds the graham cracker crumbs together.
  • Sugar: Adds a touch of sweetness to the crust.

Tip: Make the crust from scratch for the best texture and flavor, but a pre-made crust works in a pinch.

Key Lime Pie Filling

  • Egg yolks: Creates a smooth, silky texture.
  • Sweetened condensed milk: Adds sweetness and richness.
  • Key limes: Fresh is best, but bottled juice (like Nellie and Joe’s Key Lime Juice) works great.
  • Key lime zest: Enhances the tart, citrus flavor.

Optional Whipped Topping

Ingredients to make Key lime pie, including sweetened condensed milk, sugar, crushed graham crackers, butter, eggs, and Key West lime juice.


Tips for the Best Key Lime Pie

Use Fresh Key Limes: Use fresh key limes whenever possible for the most authentic and vibrant flavor. They have a distinct tartness that sets Key Lime Pie apart from regular lime pie.

Pre-Bake the Crust: This prevents a soggy crust and ensures a sturdy base.

Don’t Overbake: The filling should be set but still slightly jiggly when you remove it from the oven.

Serve Chilled: Allow the pie to cool to room temperature before refrigerating, then refrigerate for several hours or overnight before serving. This allows flavors to meld for the perfect taste.

A whole key lime pie decorated with whipped cream and thin slices of lime over the top

Frequently Asked Questions

What is the difference between key limes and limes?

Key limes are smaller, more tart, and more fragrant than regular limes. If you can’t find fresh key limes, use Nellie and Joe’s Key Lime Juice or regular limes as a substitute.

What color should my pie be?

Authentic Key Lime Pie is a pale yellow-green. Skip the green food coloring unless you want a brighter green for an occasion like St. Patrick’s Day.

Can I use a store-bought graham cracker crust?

Yes! A pre-made graham cracker crust saves some time and makes this recipe even easier.

A slice of creamy Key Lime Pie with whipped topping and lime zest garnish.

Reader Reviews

We’ve had over 100 reviews from people who love this recipe as much as we do. Here are just a few:

I’ve made this multiple times and it is always a hit! Everyone who tries it wants the recipe. I use lime juice only because I can’t get key limes where I live (Newfoundland, Canada) and it’s still wonderful!

Keri

I have made this super easy key lime pie recipe so many times for friends and family. I always get rave reviews from everyone. Thank you so much for posting this recipe because I am a VIP when I make this for a party. I love all your recipes:)

Sandra

Absolutely perfect. I have tried many that did not set up or were too sweet. This is as good as the restaurant with the best key lime pie where I live. Thanks for sharing.

Lorelei
A beautifully decorated whole key lime pie with one slice removed.

More Delicious Pie Recipes

If you love tangy citrus-infused desserts like this one, be sure to try our Homemade Lemon Meringue Pie, Cream Cheese Lemon Bars, Coconut Lime Cheesecake Bars, or our super easy Orange Pineapple Cake! Here are some more of our favorites:

How to Make Key Lime Pie

A slice of key lime pie being removed from the full pie with a pie knife

Key Lime Pie

4.99 from 139 votes
This Key Lime Pie recipe comes straight from Savannah, Georgia. It is smooth and creamy with the perfect blend of tart and sweet.
Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Course Dessert
Cuisine American
Servings 8

Video

Ingredients

For the crust:

  • 1/3 cup butter melted
  • 1/4 cup sugar
  • 1 1/4 cup graham cracker crumbs

For the filling:

  • 4 egg yolks
  • 6 key limes for zesting and juicing
  • 14 ounces sweetened condensed milk
  • Nellie & Joe's Famous Key West Lime Juice (if needed)
  • whipped topping to garnish (optional)

Instructions

For the crust:

  • Combine melted butter and sugar in a medium bowl. Stir in crushed graham crackers.
    Graham cracker crumbs in a bowl with melted butter to make a pie crust
  • Spread evenly into 9-inch pie plate and press onto bottom and sides to form an even crust. The bottom of a measuring cup works great for pressing the crumbs firmly into the pie plate.
    Chill for an hour until firm OR bake at 375-degrees for 5 min and allow to cool before filling.
    A graham cracker crust being pressed down with the back of a measuring cup, making the bottom of the pie crust flat.

For the filling:

  • Preheat oven to 350-degrees. 
    Zest key limes until there are 2 teaspoons of zest, then juice them. Pour the fresh key lime juice into a ½ cup measuring cup.
    If the ½ cup isn't filled, add bottled key lime juice to fill it completely.
    An image of a box grater with zested and juiced limes next to it. There is a clear cup with fresh lime juice from the limes next to the grater.
  • Whisk the egg yolks until they are thick and turn to a light yellow. Use a stand mixer or an electric mixer. Slowly add sweetened condensed milk while mixing on a low speed. 
    Key lime pie filling being mixed with electric beaters so the texture is smooth
  • Gradually add the key lime juice and zest and continue to mix on a low speed just until blended.
    Key lime pie filling being mixed with electric beaters
  • Pour the mixture into the prepared pie shell and bake 15 minutes.
    Filling being poured into a graham cracker crust of a key lime pie
  • Remove and let it cool to room temperate then store in the refrigerator until ready to serve.
    A fully baked key lime pie with no toppings
  • Serve with a garnish of whipped topping lime slices and little lime zest, if desired.
    A whole key lime pie decorated with whipped cream and thin slices of lime over the top next to a cutting board of sliced limes

Notes

Substitutions

If key limes and/or key lime juice are not available, you can still make this pie!
  • Use Nellie & Joe’s Key Lime juice in place of fresh key limes.
  • Substitute the juice of 1 lime in place of the 6 key limes. Make sure you have ½ cup of juice.

Nutrition Information

Calories: 342kcalCarbohydrates: 45gProtein: 6gFat: 16gSaturated Fat: 9gCholesterol: 135mgSodium: 228mgPotassium: 228mgFiber: 1gSugar: 37gVitamin A: 499IUVitamin C: 4mgCalcium: 166mgIron: 1mg

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About the author

Erica Walker

Erica lives in Boise, Idaho with her husband, Jared, an attorney, and her three beautiful girls. Beyond the world of recipes, she loves adventuring with everything from kayaking, to cruising, to snowboarding and taking the family along for the thrill ride.

More about Erica Walker
4.99 from 139 votes (93 ratings without comment)

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Comments

  1. 5 stars
    Made key lime pie for the first time using this recipe and it is a success. The recipe is simple, but the flavor of the pie is so good. I used fresh juice and didn’t use premade juice – maybe that also makes a difference. This recipe is a keeper!

  2. I man going to make this recipe however I don’t know how much juice is if I’m using the key lime juice in the bottle, not actual limes. Can you give a measurement if ounces?

    1. You get about 2 tablespoons of juice from each key lime, so you’ll need about 12 tablespoons or 6 ounces. Hope this helps!

  3. Newbie question: I’m assuming it’s 14oz volume as opposed to weight of condensed milk? They come in 14oz (net weight) cans so I think I didn’t catch that and therefor didn’t use enough, my novice mistake! Such is life with the Imperial System.. lol Thanks!

    1. Our recipe uses 1 14oz can of sweetened condensed milk. Hope that helps! Sorry for the confusion.

  4. I am having the same problem the batteries done. I put it into the pie shell. There is definitely not enough batter to fill the shell. It only comes like maybe halfway up and I know this doesn’t rise so I’m very disappointing cause I’m gonna feel stupid bringing this to a barbecue tomorrow. When looks like it’s half made other people must have this problem. Yes, I used a 9 inch pie plate and crust.

    1. Some pie plates are deeper than others – we have been making this recipe for years in a 9 inch pie dish and it always fills the whole dish.

  5. 5 stars
    This is my first time making key lime pie. It most definitely won’t be my last. Of course like any good cook I had nibbles. My grandson say’s it’s one of his favorites. He juiced the limes and zested them for me. Will be making a fresh pot of coffee to serve with it tonight. So good

  6. 5 stars
    Delicious! Can I substitute the Graham cracker crust with a Nilla wafer crust or r maybe combine the 2? Wanted to try a different spin and I am craving Nilla wafers.

  7. 5 stars
    5 stars because it’s key lime.
    My question is I’d like to juice 9 key limes instead of 6.(for that extra kick).
    What do I need to change the recipe to keep the filling thick?
    Thanks in advance,. Frostproof,FL.

      1. Hey thanks for the fast reply.
        Since I plan on 50% more juice, I’ll go with 50% more yolks.
        We’ll start there. Gonna do one today.
        I’ll be sure to let you know how it turns out.

  8. Step one is a little unclear. You zest the limes and juice them- but the next step says to cut the zested limes in half and juice them. Is that an accidental repeat?

  9. Hi! I want to try Key Lime Pie!
    But if i get the Lime jus in a bottle will it be the same taste?
    Or shoudl i get Bottle of Key lime jus on Anazone? And also amouch key lime jus do we need to use 1/4 cup?

    Thxs:)

    1. If you can’t find key limes or key lime juice, you can substitute common limes. You can swap out 6 fresh key limes for 1 large regular lime. As far as the juice goes, you can swap it out at a 1:1 ratio (¼ cup key lime juice for ¼ cup regular lime juice).

  10. 5 stars
    Easy and delicious!
    This was the 1st key lime pie I ever made and will definitely make this recipe again. Thank you!

  11. 5 stars
    Ultimately the best key lime pie there ever was. It reminds me of my dear sweet mama’s key lime pie. My God bless you, and thank you.

    1. You have to beat the egg yolks for about 5 minutes on high speed. If you didn’t do that it could be why it didn’t set up. I just made it and I looked up how long to beat the egg yolks for them to thicken and turn light yellow. My pie came out fine.

  12. Hi there! Can you clarify – *If key limes are not available, you can still make this pie! Substitute 1 lime in place of the 6 key limes.* Does this mean if you are using a regular lime, we only use one for the entire recipe? Thanks!

    1. Key limes are not available locally. But I buy Nellie and Joe’s bottled key lime juice and this pie tastes fabulous. If you cannot find it it’s available at Amazon and Walmart.