Preparation Steps

• Preheat oven to 350°F (175°C). Line an 8x8 inch baking pan with parchment paper, leaving an overhang on the sides.
• In a medium bowl, combine graham cracker crumbs and sugar. Pour in melted butter and stir until well combined.
  2.5 cups graham cracker crumbs
• Press the crumb mixture evenly into the bottom of the prepared baking pan.
• Bake the crust for 8-10 minutes, then let it cool completely.
• In a large bowl, whisk together sweetened condensed milk, key lime juice, egg yolks, and lime zest until smooth.
  2.5 cups graham cracker crumbs
• Pour the filling over the cooled crust.
• Refrigerate for at least 4 hours, or until set.
• Once set, use the parchment paper overhang to lift the bars out of the pan. Cut into bars.
• Serve chilled, topped with whipped cream and lime slices, if desired.