Chocolate Espresso Layer Cake

Name: Chocolate Espresso Layer Cake
Prep time: 20 min
Cook time: 23 min
Total time: 43 min
Cuisine: American
Ingredients: 2 cups all-purpose flour*; 1/4 cup cocoa powder; 1 tablespoon instant espresso powder; 2 teaspoons baking powder; 2 teaspoons baking soda; 1 teaspoon salt; 2 cups water; 2 cups [brand:name] Extra Fine Granulated Sugar; 5 ounces dark chocolate, chopped; 6 tablespoons unsalted butter; 2 tablespoons vegetable oil; 1 teaspoon vanilla extract; 2 large eggs; 2 tablespoons instant espresso powder; 2 tablespoons water; 2 cups (4 sticks) unsalted butter, room temperature; 5-6 cups [brand:name] Confectioners Powdered Sugar; 1 tablespoon vanilla extract; Pinch of salt