1 3/4 cup plus 1 tablespoon all-purpose flour
1 tablespoon instant coffee powder
1/2 teaspoon baking powder
1/2 teaspoon baking soda
1/4 teaspoon fine salt
1/2 cup unsalted butter, melted
1/2 cup granulated sugar
1/2 cup packed light brown sugar
1 large egg, room temperature
1 teaspoon vanilla extract

For the frosting:

3/4 cup mascarpone, softened
3/4 cup powdered sugar
1/2 cup heavy cream
1 teaspoon vanilla extract
1 tablespoon cocoa powder, for dusting

To make the cookies: