Red Velvet Cake

• 3 Tablespoons cocoa
• 1/2 cup butter
• 1-1/2 cups sugar
• 2 eggs
• 1 cup buttermilk
• 2-1/4 cups flour
• 1/4 teaspoon salt
• 1 teaspoon vanilla
• 1 Tablespoon vinegar
• 1 teaspoon baking soda
• Red food coloring

Cream butter and sugar. Add eggs, cocoa, and coloring and mix well. Add buttermilk by hand. Add flour, salt, and vanilla. Beat well by hand. Add vinegar and baking soda. Bake at 350 degrees F. for 30 minutes if using a 9 x 13 inch pan, or 25 minutes in 3 (8-inch) cake pans.