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Overhead view of a gluten free key lime pie with a piece cut out from it, decorated with whipped cream dollops along the edges

Gluten Free Key Lime Pie

  • Author: Alejandra | The Littlest Crumb
  • Total Time: 3 hours 45 minutes
  • Yield: 10 slices 1x
  • Diet: Vegetarian


This is the BEST gluten free key lime pie. An easy to make gluten free graham cracker crust, filled with a tart, slightly sweet key lime pie filling. Served refreshingly cold, topped with a dollop of whipped cream.


  • Graham Cracker Crust:
    • 1 ¾ cup (238g) gluten free graham crackers
    • 2 ½ tbsp (31g) granulated sugar
    • 7 tbsp (99g) butter, melted
  • Key Lime Pie Filling:
    • 2 ½ cups (300ml) sweetened condensed milk
    • ¼ cup (60ml) heavy cream
    • 3 egg yolks
    • 1 cup (240ml) key lime juice, freshly squeezed
  • Whipped Cream Topping:
    • ½ cup (120ml) heavy cream
    • ½ tbsp (3.9g) icing sugar 


    1. Graham Cracker Crust: Preheat the oven to 375F. In a food processor, pulse the graham crackers until they are fine crumbs. Mix the graham cracker crumbs, granulated sugar and melted butter together. Press the mixture into a 9” pie dish. Make sure the crust covers the bottom of the dish and goes up most of the way on the sides as well. Use a measuring cup with a flat base to pack the crumbs down tightly. Bake the empty pie crust for 8-10 minutes. Remove the crust from the oven and let it cool for about 10 minutes before adding the key lime pie filling. Reduce the oven temperature to 350F. 

    2. Key Lime Pie Filling: In a large bowl, mix the sweetened condensed milk, cream, egg yolks and key lime juice together. Pour the filling into the warm pie crust. Bake for 18-22 minutes until the filling is mostly fully set, and only slightly jiggly. Remove the pie from the oven and let it cool to room temperature. Then, refrigerate the pie for at least 3 hours before serving.

    3. Whipped Cream Topping: With an electric mixer, beat the cream and icing sugar together until soft peaks form. Serve the pie with a dollop of whipped cream. 


    • If you don’t have fresh key limes available in your area, or they are not in season, you can use regular limes instead.
    • You can adjust the amount of icing sugar in the whipped cream based on your preference for sweetness. If you like extra sweet whipped cream, add 1-2 tbsp of icing sugar instead. 
    • Prep Time: 3 hours 15 minutes
    • Cook Time: 30 minutes
    • Category: Pie
    • Method: Baked
    • Cuisine: American


    • Serving Size: 1 slice
    • Calories: 533
    • Sugar: 54.9g
    • Sodium: 285mg
    • Fat: 25.6g
    • Saturated Fat: 14.6g
    • Unsaturated Fat: 9.3g
    • Trans Fat: 0.6g
    • Carbohydrates: 69.2g
    • Fiber: 0.9g
    • Protein: 9.6g
    • Cholesterol: 125mg

    Keywords: Key lime pie, easy, gluten free, dessert