Chocolate-Espresso Kahlua Tart

chocolate espresso kahlua tart
Photo: Johnny Miller
Yield:
8 to 10 Serves

A mocha tart laced with Kahlua is poised to work its seductive magic on the palate.

Ingredients

Crust

  • 2 cups hazelnuts (9 ounces)

  • 1 ⅓ cups finely ground chocolate wafer cookies (about 22)

  • ½ teaspoon instant espresso powder

  • ¼ teaspoon salt

  • 10 tablespoons (1 ¼ sticks) unsalted butter, melted and cooled slightly

Mousse

  • ½ cup Kahlua (coffee-flavored liqueur)

  • ½ cup unsweetened cocoa powder

  • 2 large eggs, separated

  • 1 teaspoon instant espresso powder

  • Pinch of salt

  • 4 ounces bittersweet chocolate, chopped

  • 4 tablespoons unsalted butter

  • 1 cup heavy cream

  • 6 tablespoons sugar

Directions

  1. Crust:

    Preheat oven to 375 degrees. Toast hazelnuts in oven on a rimmed baking sheet until skins split and flesh turns deep golden brown, 10 to 12 minutes. When cool enough to handle, rub nuts in a clean kitchen towel to remove skins (some will remain). Let cool completely. Finely grind in a food processor. Reduce oven temperature to 325 degrees.

  2. Stir together nuts, cookie crumbs, espresso powder, salt, and butter. Press onto bottom and up sides of an 11-inch round tart pan with a removable bottom. Refrigerate until firm, about 30 minutes.

  3. Bake tart shell on a baking sheet until firm to the touch, about 20 minutes. Let cool completely on a wire rack.

  4. Mousse:

    Whisk liqueur, cocoa, egg yolks, espresso powder, and salt in a medium bowl. Melt chocolate and butter in a heatproof bowl set over a pan of simmering water. Whisk in liqueur mixture. Cook, whisking, until mixture is thickened and registers 160 degrees on an instant-read thermometer. Let cool completely.

  5. Beat cream just to stiff peaks; set aside. Whisk egg whites and sugar in the heatproof bowl of an electric mixer set over a pan of simmering water. Cook, whisking, until sugar is dissolved and mixture registers 140 degrees on thermometer.

  6. Fit mixer with the whisk attachment; transfer bowl with meringue to mixer. Starting on medium speed and gradually increasing to high, beat meringue until shiny and cool. Using a rubber spatula, fold chocolate mixture and then whipped cream into meringue. Spread in tart shell. Refrigerate until set, about 1 hour.

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