Chocolate Mayonnaise Cake - cooking recipe

Ingredients

3 c. plain flour
1 1/2 c. sugar
1/3 c. cocoa
2 1/4 tsp. baking powder
1 1/2 tsp. baking soda (stir in)
1 1/2 c. mayonnaise
1 1/2 c. water
1 1/2 tsp. vanilla

Preparation

Pour in long flat greased and lined pan.
Bake at 300\u00b0 for 30 minutes (glass at 325\u00b0).