Texas Sheet Cake
INGREDIENTS 2 cups all-purpose flour 2 cups white sugar 1 teaspoon baking soda ½ teaspoon salt ½ cup sour cream 2 eggs 1 cup butter 1 cup water 5 tablespoons unsweetened cocoa powder 6 tablespoons milk 5 tablespoons unsweetened cocoa powder ½ cup butter 4 cups confectioners' sugar 1 teaspoon vanilla extract 1 cup chopped ...