This pie is all about the slow reveal: It appears to be a simple chocolate mousse with a cookie crust. Cut into it, though, and guests will gasp at this triple layered (and flavored!) dessert. Since it's the perfect choice for a special occasion like Thanksgiving or Christmas, we made this icebox creation as make-ahead friendly as possible. Fill and chill up to two days ahead, then dust with cocoa powder before serving.

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Christopher Testani

Recipe Summary

prep:
45 mins
total:
9 hrs
Yield:
Serves 10 to 12
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Ingredients

Crust
Mousses
Espresso Cream

Directions

Instructions Checklist
  • Crust: Preheat oven to 350°F. Brush the bottom and sides of a 9-inch-round, 3-inch-deep springform pan with butter. Pulse cookies and granulated sugar in a food processor until finely ground. Add butter and salt, pulsing until texture resembles that of wet sand. Press mixture evenly into bottom and halfway up sides of prepared pan. Bake until crust is set and dry to the touch, 12 to 15 minutes. Transfer pan to a wire rack; let cool completely. (Crust can be loosely wrapped and stored at room temperature up to 1 day.)

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  • Mousses: Melt both chocolates in separate heatproof bowls set over (but not in) a pot of simmering water, stirring occasionally, until only pea-size lumps remain. Remove from heat; stir until chocolate is completely melted. Let cool to warm room temperature. Stir 1 egg yolk and 1/2 teaspoon vanilla into each bowl just to combine.

  • In a mixer fitted with the whisk attachment, beat egg whites on low speed until foamy. Add cream of tartar; increase speed to medium-high and beat to soft peaks. With motor running, gradually add granulated sugar and beat to stiff, glossy peaks.

  • Stir 1 cup meringue into each bowl with chocolate mixture. Divide remaining meringue evenly between mixtures, gently folding in until no streaks remain. Whisk cream with confectioners' sugar to soft peaks. Divide evenly between chocolate mixtures, gently folding in until no streaks remain.

  • Pour bittersweet-chocolate mousse into crust, smoothing top with an offset spatula. Gently pour milk-chocolate mousse over bittersweet mousse, smoothing top.

  • Espresso Cream: Whisk cream, espresso powder, and confectioners' sugar to stiff peaks. Spread evenly over milk-chocolate mousse in pan, smoothing top. Refrigerate until set, at least 8 hours. (Pie can be loosely covered with plastic wrap and refrigerated up to 3 days.)

  • To serve, lightly dust top with cocoa, then run a thin knife around edges of pan to loosen; unlock pan and lift sides to remove. Transfer pie to a serving plate or cake stand and cut into wedges.

Cook's Notes

If you are concerned about using raw eggs, look for the pasteurized variety at the store.

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