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Home » Recipes » Desserts

Coconut Key Lime Pie

Updated: Jul 12, 2025 · Published: Mar 14, 2022 by Jennifer

Jump to Recipe Print Recipe

This easy Coconut Key Lime Pie delivers a burst of tropical flavor-no key limes required! Made with everyday Persian limes (or key limes if you have access to them), it’s bright, tangy, and perfectly balanced. A cloud of coconut whipped cream and a sprinkle of toasted coconut flakes take this pie to dreamy new heights.

Overhead shot of coconut key lime pie in white pie dish placed on a pink background. Scattered limes in eh background.

Key limes are known for their bright, tart flavor, but they can be hard to track down depending on where you live. I rarely find them fresh in my area, so I often turn to the more common Persian limes (the standard green ones you’ll find at most grocery stores). While the flavor is slightly different-Persian limes are a bit less tart and more mellow-they still work beautifully in this pie.

Of course, if you do have access to fresh key limes… please send me a box immediately, then go ahead and make the pie!

My favorite part of this coconut key lime pie is the coconut whipped cream topping. I mean, who doesn't love coconut? It sends me into a state of tropical bliss. And if you’re in the mood for more island vibes, you’ve got to try my pineapple banana smoothie next!

Ingredients

This recipe uses a handful of basic ingredients that are easy to find in any grocery store.

Ingredients for key lime pie on a grey surface.
  • Limes- Key limes if you have access to them. Persian limes are a great substitute, or you can use bottled key lime juice.
  • Egg yolks- Separate your yolks from the whites. The whites can be saved to make an egg white omelet, or added to scrambled eggs or frittatas.
  • Sweetened condensed milk- Not to be confused with evaporated milk.
  • Heavy cream- Or whipping cream. Used to make the coconut whipped topping.
  • Confectioner's sugar- Also known as powdered sugar, this is what you use to sweeten the coconut topping.
  • Coconut extract- Gives the coconut whipped cream its tropical flavor.
  • Flaked coconut- I use unsweetened coconut, as the pie is already sweet.
  • Graham crackers- Choose plain graham crackers (my go-to brand is Nabisco). You can buy them whole and crush them yourself, or sometimes you can find graham cracker crumbs in the store.
  • Butter- Unsalted butter for the crust. If using salted butter, just omit the salt when making the crust.
  • Salt- To flavor the graham cracker crust.

See the recipe card for quantities.

Instructions

Use the guide below to ensure your pie comes out picture-perfect every time!

A grid of 4 photos showing how to make key lime pie.

Step 1. In a large bowl, mix the graham cracker crumbs, melted butter, and salt until well combined. Step 2. Add the mixture to a 9-inch pie pan, pressing the crumbs down to cover the bottom and sides of the pan (use your fingers, a spoon, or the flat side of a cup). Bake at 350℉ for about 8 minutes. Allow to cool while you make the filling. Step 3. Whisk the eggs until slightly thickened. Step 4. Whisk in the condensed milk and lime juice until thoroughly mixed.

A collage of four images showing how to make key lime pie.

Step 5. Pour the egg/lime mixture into the pan. Step 6. Bake the pie for 18-22 minutes or until the mixture is set, but has a slight wiggle in the center. Allow to cool to room temperature, then place in the fridge to cool for at least 4 hours before adding the topping. Step 7. While the pie is chilling, toast the coconut. Add coconut to a pan and cook over medium heat, stirring frequently, until golden brown. Remove to cool and set aside. Step 8. Beat the cold whipped cream with a mixer over medium-high heat. When it starts to form soft peaks, add the sugar and coconut extract. Beat until stiff peaks form.

To assemble the pie, remove the chilled pie from the fridge. Add the whipped topping and spread using a spoon or cake level (it can be rustic- no need for perfection). Top with the toasted coconut and fresh lime zest if desired. Serve and enjoy!

Full instructions are located in the recipe card below.

👩‍🍳Expert tips

  • If crushing graham crackers by hand, place them in a sealed Ziploc bag and gently smash them with a rolling pin (or another heavy object) to get them to a fine crumb consistency.
  • To get a smooth filling, strain your lime juice after juicing to remove any pulp.
  • Don't skip on chilling the pie in the fridge before adding the topping. This coconut key lime pie will continue to set while being cooled, and you don't want to mess with the consistency.

Variations

Feel free to play with the flavors to make it your own.

  • Lemons - Try swapping out the limes for lemons for a delicious lemon pie.
  • Cinnamon - Try adding a hint of cinnamon to the graham cracker crust.
  • Vanilla - Not in the mood for coconut? Just swap out the coconut extract for classic vanilla extract in the whipped cream, or add a touch to the pie for baking.
Key lime pie cut open in a pie plate to show the inside.
Close-up of coconut key lime pie on a pink surface with limes.

How to store coconut key lime pie

Store in the fridge covered with plastic wrap or aluminum foil. It will keep in the fridge for up to 3 days. To Freeze: Wrap well in layers of plastic wrap and freeze for up to 3 months.

FAQ

Can I use bottled lime juice?

Yes! Look for bottled Key Lime Juice (Nellie & Joe's is a popular one).

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Did you make this recipe? I would love to hear about it! Please leave a ⭐⭐⭐⭐⭐ rating with a comment right below the recipe card. If you snap a photo of your creation, don't forget to tag me on Instagram @brunchandbatter.

📖Recipe

Overhead view of coconut key lime pie in a white pie dish on a pink background

Coconut Key Lime Pie

This easy-to-make coconut key lime pie uses regular Persian limes to bring that tropical flavor right to your taste buds. The addition of coconut in the whipped topping and toasted coconut flakes brings this pie to the next level.
5 from 1 vote
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Prep Time 5 hours hrs 30 minutes mins
Cook Time 20 minutes mins
Total Time 5 hours hrs 50 minutes mins
Course Dessert
Cuisine American
Servings 8
Calories 501 kcal

Equipment

  • 1 9 inch pie or tart pan
  • 1 hand or stand mixer for the whipped cream, optional

Ingredients
 

  • 1¾ cup plain graham crackers crumbs about 13 full graham cracker sheets
  • 6 tablespoon unsalted butter, melted if using salted butter, omit the salt in the next step
  • ¼ teaspoon Kosher or fine sea salt
  • 4 large egg yolks
  • 1 14 oz can of sweetened condensed milk
  • ½ cup freshly squeezed lime juice (key limes or regular) About 3-4 limes, additional if using for decorating/serving
  • 1 cup heavy cream (whipping cream) chilled
  • 3 tablespoon confectioner's (powdered) sugar
  • ½ teaspoon coconut extract
  • ⅓ cup sweetened or unsweetened coconut flakes
  • lime zest for decorating, optional

Instructions
 

For the crust

  • Preheat the oven to 350℉.
  • In a large bowl, combine the graham cracker crumbs, melted butter, and salt. Stir to combine. The mixture should come together when pressed.
    1¾ cup plain graham crackers crumbs, 6 tablespoon unsalted butter, melted, ¼ teaspoon Kosher or fine sea salt
  • In a 9-inch pie pan, press the mixture firmly and evenly, bringing the crumbs up the sides. You can use your hands or the bottom of a measuring cup to pack the crust as you work it into the pan.
  • Bake the crust for 8-10 minutes until lightly golden and crust is set. Allow to cool slightly.

For the filling

  • In a medium bowl, vigorously whisk the egg yolks until slightly thickened. Alternately, if you have a hand mixer, feel free to use it. Gently whisk in the condensed milk until combined, then whisk in the lime juice.
    4 large egg yolks, 1 14 oz can of sweetened condensed milk, ½ cup freshly squeezed lime juice (key limes or regular)
  • Add the filling into the cooled crust and spread it evenly.
  • Place the pan on a baking sheet (to prevent any spillage) and bake for 20 minutes. The filling will be partially set (slight wiggle to the center). Cool to room temperature and refrigerate until the filling is completely set- at least 5 hours or up to 24 hours.
  • While the pie is baking, toast the coconut.

For the toasted coconut

  • Set a small pan over medium heat. Add the coconut flakes to the pan and cook, stirring frequently until the flakes are mostly golden brown (about 5 minutes). If using sweetened coconut flakes, these tend to brown quicker so keep an eye on them. Set aside.
    ⅓ cup sweetened or unsweetened coconut flakes

For the whipped topping

  • In a large bowl, add the cold heavy cream. Using a hand mixer, beat on high speed until soft peaks form. Once formed, add the confectioner's sugar and coconut extract. Continue to beat on high until stiff peaks are formed.
    1 cup heavy cream (whipping cream), 3 tablespoon confectioner's (powdered) sugar, ½ teaspoon coconut extract

Assembling the pie

  • Remove the chilled pie from the refrigerator. Swirl the whipped topping over the top. Garnish with toasted coconut and lime zest or wedges (if using).
    lime zest for decorating, optional

Notes

  • If crushing graham crackers by hand, place them in a sealed Ziploc bag and gently smash them with a rolling pin (or another heavy object) to get them to a fine crumb consistency.
  • To get a smooth filling, strain your lime juice after juicing to remove any pulp.
  • Store in the fridge covered with plastic wrap or aluminum foil. It will keep in the fridge for up to 3 days. To Freeze: Wrap well in layers of plastic wrap and freeze for up to 3 months.

Nutrition*

Serving: 1 sliceCalories: 501kcalCarbohydrates: 61.1gProtein: 9.7gFat: 26.3gSaturated Fat: 16gCholesterol: 171mgSodium: 257mgPotassium: 330mgFiber: 1.7gSugar: 49.3gCalcium: 223mgIron: 1mg

*Nutrition information is provided as a courtesy and is an estimate only. Nutrition information can vary depending on many factors, such as products used, measurements and substitutions, therefore it is recommended that you obtain nutritional calculations based on your own finished recipe.

Have you tried this recipe?Leave a comment below and share a photo on Instagram. Tag @brunchandbatter or hashtag it with #brunchandbatter

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Comments

    5 from 1 vote

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    Recipe Rating




  1. Christina says

    September 03, 2024 at 6:33 pm

    5 stars
    This pie is so delicious! The tangy tart creamy taste placed me on an island during a sunset. The crust alone got me melting into the sand. What a great pie to bring to any occasion. Easy to make and put together and once done, you’ll be the most impressed with what you’ve just created.

    Reply
Author looking at the camera holding eggs.

About Jennifer

Oh hey there! I'm Jennifer, the recipe developer, blogger, and food photographer behind Brunch and Batter. I've been a seasoned home cook (and nurse) for over 25 years, specializing in unique breakfast recipes, updated lunch classics, and simple, no-fuss desserts. I'm so glad you found me! Read more...

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