1 8 ounce carton mascarpone cheese, softened 1 cup whipping cream ¼ cup powdered sugar 1 teaspoon vanilla 1 tablespoon dark rum, coffee liqueur, or brandy (optional)

Note:

You can also substitute unfrosted purchased cupcakes or use a mix for the cupcakes. If the mix makes, 24 cupcakes, double the espresso-rum mixture, the Mascarpone Frosting, and the cocoa powder.