Willard Scott'S Favorite Christmas Cake
["2 1/2 c. self-rising flour", "1/4 c. (2 oz.) red food coloring", "1 1/2 c. vegetable oil", "1 tsp. baking soda", "1 tsp. vanilla", "1 c. buttermilk", "1 1/2 c. granulated sugar", "2 large eggs", "1 tsp. cocoa", "1 tsp. white vinegar"]
["Heat oven to 350\u00b0. Mix together all ingredients with an electric mixer. Spray three 9-inch round cake pans with nonstick coating. Pour batter equally into the 3 pans and bake for 20 minutes. Test for doneness with a toothpick. Cool layers in pans on wire racks for 10 minutes. Carefully remove layers from pans to rack to cool completely."]
["flour", "red food coloring", "vegetable oil", "baking soda", "vanilla", "buttermilk", "sugar", "eggs", "cocoa", "white vinegar"]