Instructions

1. Prepare the crust: Preheat the oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper. Combine graham cracker crumbs, sugar, salt, and melted butter. Press firmly into the prepared pan and bake for 10 minutes. Cool slightly.
2. Make the filling: In a large bowl, whisk together the sweetened condensed milk, egg yolks, key lime juice, key lime zest, and vanilla extract until smooth and creamy.
3. Bake the bars: Pour the filling over the warm crust and spread evenly. Bake for 15–18 minutes, or until the filling is just set with a slight jiggle in the center.
4. Chill: Let the bars cool to room temperature, then refrigerate for at least 4 hours or overnight until fully chilled and firm.
5. Slice and serve: Lift the bars from the pan using the parchment paper. Slice into squares and garnish with whipped cream, fresh key lime slices, extra zest, and mint before serving.