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Key Lime Bars

This recipe is based on the famous Key lime pie from Joe’s Stone Crab restaurant in Miami Beach. If you can’t find Key limes, use fresh juice from regular limes. The bars are best garnished with whipped cream and lime immediately before serving.

Recipe information

  • Yield

    makes about 1 1/2 dozen

Ingredients

for the crust

1 cup plus 2 1/2 tablespoons finely ground graham cracker crumbs
1/3 cup sugar
5 tablespoons unsalted butter, melted

for the filling

3 large egg yolks
1 1/2 teaspoons finely grated lime zest
1 (14-ounce) can sweetened condensed milk
2/3 cup fresh Key lime juice (about 23 Key limes total)

for the garnish

1/4 cup heavy cream
2 Key limes, thinly sliced into half-moons

Preparation

  1. Step 1

    Preheat oven to 350°F. Make crust: Stir together graham cracker crumbs, sugar, and butter in a small bowl. Press evenly onto bottom of an 8-inch square glass baking dish. Bake until dry and golden brown, about 10 minutes. Let cool completely on a wire rack.

    Step 2

    Make filling: Put egg yolks and lime zest in the bowl of an electric mixer fitted with the whisk attachment. Mix on high speed until very thick, about 5 minutes. Reduce speed to medium. Add condensed milk in a slow, steady stream, mixing constantly. Raise speed to high; mix until thick, about 3 minutes. Reduce speed to low. Add lime juice; mix until just combined.

    Step 3

    Spread filling evenly over crust using a spatula. Bake, rotating halfway through, until filling is just set, about 10 minutes. Let cool completely on a wire rack. Refrigerate at least 4 hours or overnight.

    Step 4

    Make garnish: Cut into 2-inch squares. Put cream in the clean bowl of an electric mixer fitted with the clean whisk attachment. Mix on medium-high speed until stiff peaks form. Garnish bars with whipped cream and a slice of lime. Ungarnished bars can be refrigerated in an airtight container up to 3 days.

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