Ingredients
2 sticks (1 cup) unsalted butter
2/3 cup unbleached all-purpose flour
2 cups granulated sugar
4 large eggs (room temperature)
1 teaspoon pure vanilla extract
1 teaspoon prepared strong coffee
1 tablespoon liqueur, such as Frangelico or Grand Marnier (optional)
3/4 cup unsweetened natural cocoa powder (not Dutch process)
1/2 teaspoon baking powder
1/2 teaspoon fine sea salt
Preparation
