Does any one have the recipe for Chocolate Mayonnaise Cake?

My mother used to make a Chocolate Mayonnaise Cake with a box chocolate cake mix, mayonnaise and ??????? Unfortunately, I have lost the recipe and my mother is gone now.Does any one have the recipe for Chocolate Mayonnaise Cake?
CHOCOLATE MAYONNAISE CAKE





1 pkg. chocolate cake mix (with pudding)


1 c. of mayonnaise


1 c. water


3 eggs


Confectioners sugar (dusting cake only)





In large mixing bowl, blend all ingredients at low speed for 30 seconds. Beat at medium speed for 2 minutes. Pour into greased and floured 10 inch tube pan. Bake at 350 degrees for 50 to 60 minutes or until cake pulls away from sides of pan. Cook in pan for 10 minutes. Remove and cool completely. dust with confectioners sugar.Does any one have the recipe for Chocolate Mayonnaise Cake?
This isn't the recipe using cake mix, but it is very easy to make and tasty!





Miracle Whip Cake





2 c flour, 1 c sugar, 4 TBSP cocoa, 2 tsp baking soda, 1 c mayonnaise or Miracle Whip, 1 c cold water, 1 tsp vanilla





Mix all dry things together, then add mayonnaise, water, and vanilla. Mix well. Bake at 350 for 40 minutes
here is one that was on the net http://southernfood.about.com/od/chocola鈥?/a>
I remember they used to put that on the side of the mayonnaise bottle but i think now you can find a recipe online.