Chocolate Cake with Coffee Frosting

Directions

1. Preheat oven to 350°. In a large bowl, combine the flour, sugar, baking soda and salt; set aside. In a microwave-safe bowl, combine the chocolate and butter. Cover and microwave on high for 1 minute. Stir; cook until melted, 30 seconds longer.
2. In a small bowl, combine the buttermilk, oil and egg. Add to dry ingredients; beat just until combined. Add the chocolate mixture and vanilla.
3. Pour into a greased 8-in. square baking dish. Bake until a toothpick inserted in the center comes out clean, 30-35 minutes. Cool completely on a wire rack.
4. For frosting, in a saucepan, combine the sugar, cornstarch, salt and chocolate; stir in the coffee until blended. Bring to a boil over medium heat; cook and stir until mixture is thickened. Remove from the heat; stir in butter and vanilla. Spread warm frosting over cake.