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This classic key lime pie recipe is creamy, tangy, and completely irresistible. It’s incredibly easy to make, and the perfect pie for summer.

Key limes have such a refreshing and tangy flavor, which makes this pie so delicious. If you like the key lime flavor, you’ll love this Key Lime Cake or these Key Lime Pie Bars.

Key lime pie topped with fresh slices of lime and whipped cream.

An iconic dessert!

Key lime pie is such a classic Southern dessert. I love the tart key lime flavor, extra creamy texture, crunchy Graham Cracker Crust, and Whipped Cream on top. The subtly sweet graham cracker crust is the perfect complement to the flavor of the filling!

Don’t be afraid to try making a pie from scratch! It’s SO much simpler than you think!

With only a small handful of ingredients and only 20-25 minutes of total baking time, you’ll want to make this recipe again and again.

Key lime pie ingredients measured and set out on a kitchen counter.

How to make key lime pie

This easy key lime pie recipe is less complicated than you think, just follow these simple steps.

PREP. Preheat the oven to 350°F.

CRUST. In a medium bowl, stir together the graham cracker crumbs, sugar, and melted butter. Press the mixture into the bottom and up the sides of an 8 or 9-inch pie pan.

Bake in the preheated oven for 8-10 minutes. Leave the oven turned on, and let the crust cool as you make the filling.

PIE FILLING. In a medium bowl, whisk together the sweetened condensed milk, lime juice, and egg yolks until smooth. Pour the batter over the crust.

Bake in the preheated oven for 12-15 minutes. It should look somewhat set but still have a wobble to it.

CHILL + SERVE. Remove from the oven and cool fully. Then cover the top and refrigerate for at least 3 hours before serving.

Top with Whipped Cream, lime zest, and lime wedges.

Mixing a lime filling in a glass bowl.

Recipe Tips

Make the best key lime pie recipe with these simple tips!

Serving size. This recipe makes one 8-inch or 9-inch pie. There isn’t quite enough batter for a 10-inch or deep-dish pie

Crust. Bake the crust on its own for 10 minutes first – this helps it hold together and keeps it from getting soggy.

  • Use a food processor to make your own graham crackers crumbs. There are 7 rectangular graham cracker sheets in one cup of crumbs.
  • To make this pie gluten-free, use gluten-free graham crackers in the crust.

Cooking the pie. Be careful to not overbake – it’ll only bake for about 10-15 minutes and it should still have a wobble in the middle when you take it out of the oven.

Variations.

  • For an extra tart flavor, add 2 teaspoons of lime zest.
  • For less tartness, use ⅓ cup fresh key lime juice or use regular fresh lime juice.

Toppings. Don’t forget the Whipped Cream on top! It complements this easy key lime pie perfectly.

Pie filling in a graham cracker crust, ready for baking.

Storing Your Pie

STORE. Keep your key lime pie covered with plastic wrap or foil in the fridge for 3-4 days.

FREEZE homemade key lime pie without whipped cream or lime slices. Wrap in plastic wrap and tinfoil, or in a freezer storage bag for a few months. To thaw, place in the fridge for 3-4 hours.

A key lime pie sliced and ready to serve.
Edible Shots by Melissa

Recipe FAQ

Why is my key lime pie bitter?

Key limes are smaller and have a higher acidity than regular limes which yields a signature tart key lime pie. Avoid bottled key lime juice as it can be too sour. A sweet whipped cream topping can help balance out a bitter pie.

Why is my key lime pie soupy?

Even though this custard pie is baked, it does need time to chill in the refrigerator to finish setting properly. Cool the pie fully, then chill in the fridge for at least 4 hours before serving. Chilling the pie makes the filling set, and actually improves the flavor. Don’t skip this step!

Can you make key lime pie with regular limes?

Yes, you absolutely can. I know sometimes key limes can be hard to find depending on where you live. So feel free to use regular limes instead. Just make sure to freshly squeeze the limes and add in a bit of lime zest.

For More Citrus Recipes, Try:

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5 from 14 votes

Key Lime Pie Recipe

By: Lil’ Luna
This classic key lime pie recipe is creamy, tangy, and completely irresistible. It's incredibly easy to make, and the perfect pie for summer. 
Servings: 10 slices
Prep: 15 minutes
Cook: 25 minutes
Chilling: 3 hours
Total: 3 hours 40 minutes

Ingredients 

Graham Cracker Crust

  • cups graham cracker crumbs
  • cup sugar
  • 6 tablespoons unsalted butter, melted

Pie Filling

  • 1 (14-ounce) can sweetened condensed milk
  • ½ cup key lime juice
  • 3 large egg yolks
  • whipped cream & key limes, for decorating
Save This Recipe!
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Instructions 

  • Preheat the oven to 350°F.

Graham Cracker Crust

  • In a medium bowl, stir graham crumbs, sugar, and melted butter.
  • Press the mixture into the bottom and up the sides of an 8 or 9-inch pie pan.
  • Bake in the preheated oven for 8-10 minutes. Leave the oven turned on, and let the crust cool as you make the filling.

Pie Filling

  • In a medium bowl, whisk sweetened condensed milk, lime juice, and egg yolks until smooth.
  • Pour the batter over the crust.
  • Bake in the preheated oven for 12-15 minutes. It should look somewhat set but still have a wobble to it.
  • Remove from the oven and cool fully. Then cover the top and refrigerate for at least 3 hours before serving.
  • Top with whipped cream, lime zest, and lime wedges.

Video

Notes

STORE. Keep your key lime pie covered with plastic wrap or foil in the fridge for 3-4 days.
FREEZE homemade key lime pie without whipped cream or lime slices. Wrap in plastic wrap and tinfoil or a freezer storage bag for a few months. To thaw, place in the fridge for 3-4 hours.

Nutrition

Calories: 149kcal, Carbohydrates: 17g, Protein: 1g, Fat: 8g, Saturated Fat: 4g, Cholesterol: 70mg, Sodium: 86mg, Potassium: 42mg, Sugar: 9g, Vitamin A: 255IU, Vitamin C: 3.6mg, Calcium: 20mg, Iron: 0.7mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Dessert
Cuisine: American
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About Kristyn

My name is Kristyn and I’m the mom of SIX stinkin’ cute kids and the wife to my smokin’ hot hubby, Lo. My mom’s maiden name is Luna, and I’m one of the many crafty “Lil’ Lunas” in the fam. On this site I like to share all things creative - from recipes to home decor to gifts and home decor ideas. Welcome!

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Recipe Rating




10 Comments

  1. Shar says:

    5 stars
    This key lime pie is super light and decadent! My grandpa super loves it! Planning to make this again for his birthday.

  2. Olivia Vaughan says:

    5 stars
    Beautiful and delicious! This key lime pie was a hit in my house, thank you for sharing this recipe!

  3. April says:

    5 stars
    I love this pie! It’s so easy and so creamy and tart – absolutely perfect for summer.

  4. Olivia says:

    5 stars
    A great cool dessert. Its so creamy and easy to make.

  5. Misty says:

    5 stars
    ANything with Graham cracker crust is AMAZING! This KEY LIME pie is one of my sisters favorites!

  6. Kristina says:

    5 stars
    Im a fan of chocolate desserts but sometimes a good pie hits the spot. This key lime recipe was the perfect choice. Thanks gor all the tips as id never actually made this type of pie before.

  7. Amy L Huntley says:

    5 stars
    Key Lime Pie Screams SUMMER! This recipe was so delicious and simple to make!

  8. Becca says:

    5 stars
    Perfect for a summer party! So easy too!

  9. Joy says:

    5 stars
    This pie was so creamy & delicious!! I love the hint of lime & graham cracker crusts are my favorite!

  10. Sabrina says:

    5 stars
    key lime pie is wonderful with sweet-tart counter-balance, but one of those desserts that i forget about, so thank you for this recipe and reminder!