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How to Make Costco Key Lime Pie

Costco Key Lime Pie Recipe

Craving a slice of summer? Look no further than the Costco Key Lime Pie recipe! This dessert is a refreshing blend of tart and sweet flavors, reminiscent of warm breezy days at the beach.
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Author: Dr. Leah Alexander
Course: Appetizer
Cuisine: American
Prep Time: 15 minutes
Cook Time: 25 minutes
Total Time: 40 minutes
Servings: 4
Calories: 355kcal


  • 1 1/2 cups of condensed milk creating a creamy and indulgent base that gives the pie its smooth and velvety texture.
  • 2 tablespoons of unsalted butter melted, bringing a rich and buttery flavor that binds the crust together and adds richness to the pie.
  • 1/4 cup of sour cream, at room temperature adding a tangy and creamy element that enhances the overall richness of the pie.
  • 1 1/2 teaspoons of lime zest, grated, providing a bright and fragrant essence that intensifies the lime flavor and adds a burst of aroma to the pie.
  • 3/4 cup of graham cracker crumbs providing a crunchy and crumbly texture that forms the delicious crust for the pie.
  • 6 tablespoons of key lime juice offering a tart and tangy flavor that is distinctive to key limes, adding a refreshing and citrusy note to the pie.
  • 1/4 cup of granulated white sugar adding a touch of sweetness that balances the tanginess of the lime.


  • Preheat oven to 350°F (175°C).
  • Mix crumbs, sugar, and melted butter; press into a 9-inch pie plate.
  • Bake crust for 10 mins; let it cool.
  • Combine sweetened condensed milk, sour cream, lime juice, and zest.
  • Pour the lime mixture into the crust.
  • Bake for 5-8 mins; avoid browning.
  • Chill before serving. Optionally, garnish with cream and lime slices.


  • You can use regular limes instead of key limes if needed. The flavor will be slightly different, but still delicious.
  • If you don’t have graham crackers on hand, you can also use crushed digestive biscuits or vanilla wafers for the crust.
  • To make sure your pie is perfectly tart and sweet, make sure to adjust the sugar and lime juice amounts if needed.
Keyword: Costco Key Lime Pie Recip