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The Best Key Lime Pie Bars

Creamy key lime pie bars with graham cracker crust

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Key Lime Pie Bars are a creamy, tangy dessert with a buttery graham cracker crust and a bright citrus filling—easy to make and perfect for any occasion.

Ingredients

  • Graham Cracker Crumbs – for the toasty, sweet crust base
  • Butter – binds the crumbs and adds rich flavor
  • Granulated Sugar – sweetens the crust and balances tartness
  • Sweetened Condensed Milk – thickens the filling and adds creamy sweetness
  • Key Lime Juice – brings the signature tart, citrus flavor
  • Egg Yolks – help the filling set and add richness
  • Lime Zest – enhances citrus aroma and taste
  • Whipped Cream (optional) – adds light, airy contrast when serving

Instructions

  1. Mix graham cracker crumbs, melted butter, and sugar. Press into a parchment-lined pan and bake briefly.
  2. Whisk together sweetened condensed milk, egg yolks, key lime juice, and lime zest until smooth.
  3. Pour filling over warm crust and bake until the edges are set with a slight jiggle in the center.
  4. Cool at room temperature, then chill in the fridge for 3–4 hours or overnight.
  5. Chill for 10 minutes before serving and cut into bars using a hot knife.

Notes

  • Use fresh key lime juice for the best flavor, though bottled works in a pinch.
  • Line your pan with parchment for easy removal and clean slices.
  • Do not overbake; remove when the center still jiggles slightly.
  • Let bars cool completely before refrigerating to avoid moisture issues.
  • Add lime zest to boost flavor and visual appeal.

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