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6-ingredient Classic Key lime pie is made with only six ingredients, including sweetened condensed milk to make a smooth and creamy filling. Baked in a graham cracker crust, each bite is sweet, zesty and delicious!

Easy Key Lime Pie

This pie is made with only six ingredients, including sweetened condensed milk to make a smooth and creamy filling.
Course Dessert
Cuisine American
Prep Time 5 hours
Cook Time 15 minutes
Total Time 5 hours 15 minutes
Servings 12 servings
Calories 356kcal
Author Ashley C.


For the Graham Cracker Crust:

  • 1 1/2 cups (127 g or 7 graham crackers) finely ground graham cracker crumbs
  • 1/3 cup white sugar
  • 6 tablespoons butter melted

For the Pie:

  • 2 1/2 cups sweetened condensed milk (about two 14 ounce cans)
  • 3/4 cup sour cream
  • 3/4 cup key lime juice¹
  • 1 tablespoon grated lime zest
  • Whipped cream for garnish (optional)


To make the Graham Cracker Crust:

  • In a medium bowl, stir together graham cracker crumbs, sugar and melted butter until well combined. Press mixture into a 9-inch pie plate. Bake at 375° F for 7 minutes. Cool completely.

To make the Pie:

  • Preheat oven to 350°F.
  • In a medium bowl, combine condensed milk, sour cream, lime juice and zest. Mix well and pour into baked graham cracker crust. Tap pie plate gently on the counter to release any air bubbles.
  • Bake in preheated oven for 5 to 8 minutes, until the filling is set and barely jiggles. Do not brown. Chill pie thoroughly (at least 4 hours) before serving. Garnish with lime slices or zest and whipped cream if desired.



  1. For the best flavor, juice your own key limes or buy a bottle of key lime juice from the store. It is usually located with the regular lime juice and lemon juice. The Nellie & Joe’s key lime juice brand is the one I like.
  • Keep it for up to 3 days in the refrigerator. Cover loosely with aluminum foil or plastic wrap.
Recipe from Haley at If You Give a Blonde a Kitchen


Serving: 1slice | Calories: 356kcal | Carbohydrates: 51g | Protein: 6g | Fat: 15g | Saturated Fat: 9g | Cholesterol: 44mg | Sodium: 212mg | Potassium: 293mg | Fiber: 1g | Sugar: 44g | Vitamin A: 442IU | Vitamin C: 6mg | Calcium: 209mg | Iron: 1mg