Ingredients
The following ingredients have 12 Servings
- 1 cup hot strongly brewed coffee ((decaf works fine))
- 3 tablespoons instant espresso powder (or more to taste)
- 3 cups unbleached all-purpose flour (plus more for the pan)
- 2 1/2 teaspoons baking powder
- 1/2 teaspoon fine sea salt
- 2 sticks (8 oz) unsalted butter (chilled and cut into 1/2-inch (12-mm) cubes, plus more for the pan)
- 2 cups superfine sugar ((or just blitz granulated sugar in a blender until finely ground but not powdery))
- 1 teaspoon vanilla extract
- 4 large eggs (at room temperature, separated)
- 2 tablespoons hot brewed coffee
- 1/2 teaspoon instant espresso or coffee powder ((preferably instant espresso))
- 1 tablespoon whole milk
- 1 to 2 cups confectioners sugar (sifted)
