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The Best Key Lime Bars

Key lime bars have creamy and tart key lime filling over a pecan graham cracker crust. This is the perfect mini dessert for all your spring and summer gatherings!
Course Dessert
Cuisine American
Prep Time 20 minutes
Cook Time 15 minutes
Chilling Time 3 hours
Total Time 3 hours 35 minutes
Servings 12 bars
Calories 251kcal
Author Lauren

Ingredients

FOR THE GRAHAM CRACKER CRUST:

  • 6 full graham cracker sheets
  • ¼ cup pecan halves
  • ¼ cup brown sugar
  • teaspoon ground cinnamon
  • 5 tablespoons butter melted
  • ½ teaspoon salt

FOR THE KEY LIME FILLING:

  • 3 egg yolks
  • 1 (14 oz) can sweetened condensed milk
  • 1 tablespoon lime zest about 2 limes
  • ½ cup key lime or lime juice
  • 3 ounces cream cheese softened

OPTIONAL TOPPINGS

  • Whipped Cream
  • Extra limes

Instructions

  • PREPARE: Preheat the oven to 350˚ F and adjust the oven rack to the center position. Line an 8x8” pan with parchment paper

THE CRUST

  • MAKE THE GRAHAM CRACKER MIXTURE: Break the graham crackers into smaller pieces into a food processor a run the processor until they’ve been reduced to just crumbs. Add the pecans, brown sugar, cinnamon, salt, and butter. Pulse the mixture 8-10 times until the mixture resembles wet sand.
  • MAKE THE CRUST: Dumb the mixture into the prepared pan and use the back of a measuring cup or glass to press it flat. Bake the crust for 10 minutes, then set aside until the filling is ready.

THE FILLING

  • START THE FILLING: In a large bowl or the bowl of a stand mixer, add the yolks and beat them with the whisk attachment of an electric or stand mixer for 2 minutes on medium-high speed. Add the cream cheese to a medium-sized bowl and stir with a spatula to remove any lumps. Slowly stir in the condensed milk to the cream cheese to make a smooth mixture.
  • FINISH THE FILLING: Pour the condensed milk mixture into the yolk and beat for another 2 minutes on medium-high speed. Add the lime juice and lime zest and stir another minute. Make sure to tap off any zest caught on the beaters and stir with a spatula to combine.

BAKE AND CHILL

  • BAKE: Pour the filling over the baked graham cracker crust and spread out in an even layer. Bake for 15 minutes. The center should move just a bit when you jiggle the pan.
  • COOL AND CHILL: Leave the pan on a rack for about 1 hour and allow it to come down to room temperature. Then move the pan to the fridge uncovered and chill for at least 2 hours.
  • SERVE: Remove the parchment from the pan and slice it into 12 pieces. Add a small dollop of whipped cream onto each piece and top with a small piece of lime or fresh lime zest.

Notes

STORAGE: Store the bars in an airtight container with a lid for up to 5 days. 

Nutrition

Serving: 1bar | Calories: 251kcal | Carbohydrates: 29g | Protein: 5g | Fat: 13g | Saturated Fat: 7g | Trans Fat: 1g | Cholesterol: 80mg | Sodium: 205mg | Potassium: 178mg | Fiber: 1g | Sugar: 25g | Vitamin A: 401IU | Vitamin C: 4mg | Calcium: 121mg | Iron: 1mg