Tiramisu Cupcakes

INGREDIENTS

• :
• 1¼ cups cake flour (not self-rising), sifted
• ¾ teaspoon baking powder
• ½ teaspoon coarse salt
• ¼ cup milk
• 1 vanilla bean, halved lengthwise, seeds scraped and reserved
• 4 tablespoons unsalted butter, at room temperature, cut into pieces
• 3 whole eggs plus 3 egg yolks, at room temperature
• 1 cup granulated sugar
• 1/3 cup plus 1 tablespoon freshly brewed very strong coffee (or espresso)
• 1 ounce marsala wine
• ¼ cup granulated sugar
• 1 cup heavy cream
• 8 ounces mascarpone cheese, room temperature
• ½ cup confectioners' sugar, sifted
• Unsweetened cocoa powder, for dusting