• prep: 1 hr 15 min
• cook: 0 hr
• total: 1 hr 15 min

servings:

Looking for a dessert to impress? This extravagant cake features layers of genoise alternated with a nutmeg-and-rum-scented semifreddo -- and yes, the layers are vertical!

• Vegetable-oil cooking spray
• 1/2 cup sifted unsweetened Dutch-process cocoa powder, plus more for dusting
• 1 cup sifted cake flour (not self-rising)
• 1/2 teaspoon kosher salt
• 6 large eggs, plus 4 large egg yolks, room temperature
• 1 cup sugar
• 1 stick unsalted butter, melted and cooled
• 2 1/2 teaspoons unflavored gelatin (one 1/4-ounce package)
• 1/3 cup light rum
• 4 large eggs, separated, room temperature
• 1 1/4 cup sugar
• 2 1/2 cups cold heavy cream
• 1/2 teaspoon freshly grated nutmeg
• 2 teaspoons pure vanilla extract
• 5 large egg whites, room temperature
• 1 1/4 cups sugar
• 1/4 teaspoon cream of tartar
• 3/4 teaspoon pure vanilla extract

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