Classic Tiramisu | culture: the word on cheese

Ingredients

• 3 eggs (room temperature)
• ⅓ cup granulated sugar
• 2 cups mascarpone
• 1 cup freshly brewed double-strength coffee
• ¼ cup dark rum (optional)
• 1 teaspoon vanilla extract
• ¼ teaspoon freshly grated nutmeg
• 56 ladyfinger cookies (from 3 7-ounce packages, divided)
• 1 to 2 tablespoons unsweetened cocoa powder (for dusting)