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Key Lime Pie Bars Recipe

Key Lime Pie Bars Recipe

Bright, creamy key lime bars on a buttery graham crust, finished with fluffy whipped cream. Classic pie flavor in easy hand-held squares.
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Prep Time: 20 minutes
Cook Time: 23 minutes
Total Time: 43 minutes
Servings: 16

Ingredients
 

Main Ingredients

  • 1.75 cup graham cracker crumbs
  • 3 tbsp granulated sugar for the crust
  • 0.13 tsp fine sea salt for the crust
  • 6 tbsp unsalted butter, melted
  • 14 oz sweetened condensed milk
  • 2.8 oz egg yolks about 4 large yolks
  • 0.5 cup key lime juice fresh if possible
  • 2 tsp finely grated lime zest
  • 2 tbsp sour cream
  • 1 cup heavy whipping cream for topping
  • 2 tbsp powdered sugar for topping
  • 0.5 tsp vanilla extract for topping

Instructions

Preparation Steps

  • Heat oven to 350°F. Line an 8-inch square pan with parchment, leaving overhang.
  • Stir together graham crumbs, sugar, and salt in a bowl. Mix in melted butter until evenly moistened.
  • Press crust firmly into the pan. Bake 8–10 minutes until fragrant. Cool 5 minutes.
  • Whisk condensed milk, egg yolks, key lime juice, lime zest, and sour cream until smooth and creamy.
  • Pour filling over the warm crust and tap the pan to release bubbles.
  • Bake 14–16 minutes, until edges are set and center has a slight jiggle.
  • Cool to room temperature, then chill at least 2 hours until firm.
  • Whip cream with powdered sugar and vanilla to soft peaks. Spread or pipe over chilled bars.
  • Lift out with parchment. Slice into bars, wiping the knife between cuts.

Notes

Try a toasted coconut crust by swapping 1/4 cup crumbs for shredded coconut. Or add 2–3 oz softened cream cheese to the filling for extra tang. Bars keep well refrigerated for 3–4 days; freeze without whipped cream for up to 2 months.
This recipe is an original creation inspired by classic Key Lime Pie Bars Recipe flavors. All ingredient ratios and instructions are independently developed.