Mix dry ingredients together and then add liquids. Blend together well. Note: The addition of the Vinegar will cause the batter to foam and bubble - that's a good thing!
Pour cake mix into the greased pan. Bake for 25 to 35 minutes. Test with a toothpick, if it comes out clean it's ready.
Allow to cool, then frost. Cupcakes will alos work with this recipe - you will need to adjust the cook time.