Mayo Cake

This was posted by an online friend, Bridgett....I have had a cake like this before..its very yummy.
Cake:
6 Tablespoon cocoa
3 cups all purpose flour
1 Tablespoon baking soda
1/4 teaspoon salt
1 1/2 cups sugar
1 1/2 cups Mayonnaise
1 1/2 teaspoon Vanilla Extract
1 1/2 cups cold water

Chocolate Icing
1 cup butter. softened
1 cup unsweetened natural cocoa powder
1 teaspoon vanilla extract
5-6 cups confectioners' sugar
6 or more tablespoons milk

Preparation
Sift cocoa, flour, baking soda, salt and sugar into a medium bowl, mix well. Combine mayonnaise, vanilla and water in an electric mixer at low speed. Once smooth, slowly add in dry mixture until just incorporated (do not over beat).
Oven at 350 degrees. Bake in 2 8 inch cake pans that have been greased and floured or sprayed with non stick cooking spray. Bake for 30 minutes or until done. Check by inserting toothpick...should come out clean when done. Cool on wire racks.

Enjoy!