Name: Chocolate Espresso Layer Cake
Prep time: 90 min
Cook time: 35 min
Total time: 125 min
Yield: 1 layer cake
Ingredients: 1 3/4 cups all purpose flour; 2 cups granulated sugar; 3/4 cups unsweetened cocoa powder; 2 teaspoons baking soda; 1 teaspoon baking powder; 1 teaspoon kosher salt; 1 cup buttermilk; 1/2 cup vegetable oil; 2 large eggs; 1 teaspoon vanilla extract; 1 cup hot coffee; 6 ounces semi-sweet chocolate (chopped roughly); 2 sticks of unsalted butter (softened); 1 egg yolk; 1 cup plus 1 tablespoon powdered sugar; 1 tablespoon instant coffee or espresso granules; 2 teaspoons hot water