I like to get creative with boxed cake mixes. It's more convenient and less time consuming than making cakes from scratch. The mayonnaise in this cake makes it really moist. You cannot tell the mayonnaise is in it. Since mayonnaise is made with eggs and oil, there is no need to add oil to this recipe and it uses less eggs. Instead of the 3 large eggs the directions on the cake mix box calls for, this recipe calls for 2 large eggs.