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A slice of the best key lime pie on a white plate topped with whipped cream and lime zest
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5 from 5 votes

Best Key Lime Pie Recipe

The Best Key Lime Pie Recipe you'll ever make. The filling is sweet and creamy with the tartness from the key limes and wrapped up in a buttery delicious nutty graham cracker crust. It's so easy you find yourself making them over and over again!
Prep Time5 mins
Cook Time17 mins
Chilling Time3 hrs
Total Time3 hrs 22 mins
Course: Latest Recipes
Cuisine: American
Keyword: Key Lime Pie Recipe
Servings: 10 servings
Calories: 620kcal


Graham Cracker Pie Crust

  • 1 ½ cups graham crackers crushed, (You can sub ½ cup of these with finely chopped walnuts or pecans or nuts)
  • cups sugar
  • 6 tablespoon butter melter

Key Lime Pie Filling

  • 28 ounces sweetened condensed milk
  • ½ cup sour cream
  • 3 egg yolks
  • ½ cup key lime juice
  • 1 tablespoon key lime or lime zest

Whipped Topping

  • 1 cup heavy cream
  • ¼ cup powdered sugar
  • 1 teaspoon vanilla


Graham Cracker Pie Crust

  • Preheat oven to 375 degrees.
  • Mix graham cracker crumbs, sugar, and melted butter in a bowl until combined. Pour and press crumb mixture into 9.5 inch pie dish. Bake pie for 6 to 7 minutes. Cool for about 30 minutes.

Key Lime Pie Filling

  • Preheat oven to 350 degrees. 
  • In a medium bowl, whisk together sweetened condensed milk, sour cream, egg yolks, key lime juice and lime zest until smooth and creamy. Pour into graham cracker crust and bake for 10 minutes.

Whipped Cream Topping

  • In a stand mixer or with electric hand mixer, beat heavy cream, sugar and vanilla until stiff peaks form. Spread or pipe whipped cream on chilled pie. If desired top with lime zest and serve.


Serving: 1 | Calories: 620kcal | Carbohydrates: 80g | Protein: 11g | Fat: 30g | Saturated Fat: 18g | Polyunsaturated Fat: 10g | Trans Fat: 1g | Cholesterol: 144mg | Sodium: 261mg | Fiber: 1g | Sugar: 72g