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Key Lime Pie Bars

Delightful bars featuring a zesty key lime filling on a crispy Biscoff cookie crust topped with luscious whipped cream, perfect for summer gatherings.
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Prep Time 30 minutes
Cook Time 25 minutes
Total Time 55 minutes
Servings: 9 bars
Course: Dessert, Snack
Cuisine: American
Calories: 220
Ingredients Method Notes

Ingredients
  

For the crust
  • 2 cups Biscoff cookies, crushed Creates a sweet and crispy crust.
  • 1/2 cup unsalted butter, melted Adds richness and binds the crust.
For the filling
  • 4 large egg yolks Provides structure and creaminess.
  • 2 tablespoons key lime zest Adds bright citrus notes.
  • 1 can sweetened condensed milk Contributes sweetness and creaminess.
  • 1/2 cup key lime juice Main flavor component.
  • 1 pinch salt Enhances overall flavor.
For the topping
  • 1 cup heavy cream Used for whipping into a topping.
  • 1/4 cup powdered sugar Sweetens the whipped cream.
  • 1 teaspoon vanilla extract Adds aromatic flavor.
  • 1/4 cup sour cream Enhances richness.

Method
 

Preparation
  1. Preheat the oven to 350°F.
  2. Line an 8x8 baking pan with parchment paper.
  3. Process Biscoff cookies in a food processor until crushed, then add melted butter and pulse to combine.
  4. Firmly press the cookie mixture into the bottom of the prepared pan.
  5. Bake the crust for 10 minutes.
Filling Preparation
  1. Zest and juice the key limes.
  2. In a bowl, beat the egg yolks and zest with an electric mixer for 2-3 minutes.
  3. Add sweetened condensed milk and continue beating for another 1-2 minutes.
  4. Stir in lime juice and a pinch of salt until well combined.
  5. Pour the filling mixture over the pre-baked crust.
  6. Bake for 10-15 minutes until the filling is just set.
Chilling and Topping
  1. Cool the bars to room temperature, then refrigerate for at least 3 hours.
  2. In a separate bowl, beat heavy cream until soft peaks form, then add powdered sugar, vanilla, and sour cream; mix until desired consistency is reached.
  3. Spread the whipped cream over the chilled pie bars and refrigerate for an additional 30 minutes before serving.

Notes

For the best flavor, use fresh key lime juice and allow the bars to chill thoroughly for enhanced taste. They can be made ahead and stored for up to a week.