Chocolate Coca-Cola Cake

1 cup Coca-Cola
3 tablespoons cocoa
1 cup butter, softened
2 cups all-purpose flour
2 cups granulated sugar
1 teaspoon baking soda
1/2 teaspoon salt
1 teaspoon vanilla extract
2 cups miniature marshmallows
1/2 cup buttermilk
2 eggs

Heat oven to 350 degrees F. Grease and flour a 13 x 9-inch baking pan.

Mix together Coca-Cola, cocoa and butter. Pour Coca-Cola mixture over dry ingredients, stirring to blend. Add buttermilk and eggs. Blend well. Add marshmallows. (This batter is thin and marshmallows will float.) Pour in prepared pan. Bake for 40 minutes or until done. Let cool, then frost.

Frosting:
1/2 cup butter
3 tablespoon cocoa
6 tablespoons Coca-Cola
1 box confectioners' sugar
1 teaspoon vanilla extract
1 cup chopped nuts

Bring butter, cocoa and Coca-Cola to boiling, then pour over sugar. Add vanilla extract and nuts. Spread over cake while hot.