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Creamy No-Bake Key Lime Pie Bars

no bake key lime pie bars - featured image

These creamy no-bake key lime pie bars feature a buttery homemade graham cracker crust and a silky, tangy lime filling that sets perfectly in the fridge. A quick and easy dessert perfect for summer gatherings.

Ingredients

Scale
  • 1 1/2 cups graham cracker crumbs (about 10 full sheets)
  • 1/3 cup granulated sugar
  • 6 tablespoons unsalted butter, melted
  • Pinch of salt
  • 1 (14-ounce) can sweetened condensed milk
  • 1/2 cup sour cream (or full-fat Greek yogurt as substitute)
  • 3/4 cup fresh key lime juice (about 1520 key limes)
  • 1 tablespoon lime zest
  • 1 teaspoon vanilla extract
  • Whipped cream or coconut whipped cream (optional, for topping)
  • Extra lime zest or thin lime slices (optional, for garnish)

Instructions

  1. Prepare the Crust: In a mixing bowl, combine graham cracker crumbs, sugar, and salt. Pour in melted butter and stir until crumbs are evenly coated and look like wet sand.
  2. Press the Crust: Transfer the crumb mixture to a 9×9-inch baking pan. Firmly press the crumbs into an even layer covering the entire bottom. Optionally bake at 350°F for 8-10 minutes for a firmer crust, or chill for 15 minutes to set.
  3. Make the Filling: In a clean bowl, whisk together sweetened condensed milk, sour cream, fresh key lime juice, lime zest, and vanilla extract until smooth and creamy. Whip with an electric mixer for about 2 minutes for fluffier texture if desired.
  4. Assemble the Bars: Pour the lime filling over the chilled crust and spread evenly with a spatula. Cover the pan tightly with plastic wrap or foil.
  5. Chill to Set: Refrigerate for at least 3 hours, preferably overnight, until the filling is firm but creamy.
  6. Serve: Slice into squares using a sharp knife warmed under hot water and dried. Garnish with whipped cream and extra lime zest or thin lime slices if desired.

Notes

Baking the crust is optional but gives a firmer, toasted texture. Chilling for at least 3 hours is crucial for the filling to set properly. Use a sharp knife warmed under hot water for clean slicing. Fresh key lime juice and zest provide the best flavor. Variations include gluten-free crust, dairy-free substitutes, and adding fruit purees or nuts.

Nutrition

Keywords: key lime pie bars, no-bake dessert, graham cracker crust, creamy lime filling, summer dessert, easy key lime bars