01 -
1 cup unsalted butter, room temperature.
02 -
1/2 cup granulated sugar.
03 -
1/2 cup brown sugar.
04 -
1 large egg.
05 -
1 teaspoon vanilla extract.
06 -
1 1/2 cups all-purpose flour.
07 -
1/4 cup cocoa powder.
08 -
1 teaspoon baking soda.
09 -
1/2 teaspoon salt.
10 -
2 tablespoons instant espresso powder.
11 -
1 tablespoon hot water.
12 -
1 cup mascarpone cheese, chilled.
13 -
1/2 cup heavy cream, cold.
14 -
1/4 cup powdered sugar.
15 -
Unsweetened cocoa powder for dusting.