1 (9-inch) pie crust, baked and fully cooled (homemade or store-bought; traditional, graham, or chocolate cookie crust) 8 oz / 225 g semisweet chocolate (chips or chopped) 3 large eggs 3 / 4 cup (150 g) granulated sugar 1 / 4 cup (60 ml) water 1 cup (2 sticks / 225 g) unsalted butter, room temperature 2 tsp (10 ml) vanilla extract 1 / 4 tsp kosher salt 1 1 / 4 cups (300 ml) heavy cream, cold (for filling) 1 cup (240 ml) heavy cream, cold (for topping) 2 tbsp (15 g) powdered sugar, divided Optional: chocolate curls or shaved chocolate, for garnish
Prebake the pie crust according to package or recipe directions and let it cool completely. Melt the chocolate: Place the chocolate in a microwave-safe bowl and heat in 20–30 second bursts, stirring between each, until smooth. Set aside to cool until just warm to the touch. Cook the eggs safely: In a heatproof bowl, whisk together the eggs, granulated sugar, and water. Set the bowl over a saucepan with an inch of gently simmering water (do not let the bowl touch the water). Whisk constantly until the mixture is thickened, glossy, and reaches 160°F, about 7–10 minutes. Whip to cool: Remove the bowl from heat and beat the warm egg mixture with a hand mixer or stand mixer on medium-high until pale and cooled to room temperature, 5–7 minutes. Build the silk base: Beat in the melted chocolate, vanilla, and salt until combined. With the mixer on medium, add the softened butter 1–2 tablespoons at a time, beating until the filling is silky and glossy, 2–3 minutes. Set aside. Whip the cream for the filling: In a cold bowl, whip 1 1/4 cups heavy cream to soft peaks, then beat in 1 tablespoon powdered sugar just to combine. Lighten the filling: Gently fold the whipped cream into the chocolate mixture in two additions until no streaks remain. Fill and chill: Spread the filling into the cooled pie crust, smoothing the top. Refrigerate until firm, at least 4 hours or overnight. Make the topping: Whip the remaining 1 cup heavy cream with the remaining 1 tablespoon powdered sugar to soft peaks. Pile or pipe over the chilled pie. Garnish with chocolate curls if desired. Slice with a warm, dry knife and serve. Store leftovers covered in the refrigerator for up to 3 days.
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