Use mayonnaise instead of oil when baking a chocolate cake. The texture and taste are so much better!
Source: The Best Recipes from the Backs of Bottles, Jars, Cans and Boxes by Ceil Dyer
By av8rs3 from Eustis, FL
I have always substituted mayo instead of oil and yes it does come out very moist. Use either Hellmans mayo or Best Foods mayo which is made by Hellmans.