Chocolate Mayonnaise Cake

1 cup water
1 cup mayonnaise
1 teaspoon vanilla extract
2 cups all-purpose flour
1 cup sugar
3 tablespoons baking cocoa
2 teaspoons baking soda

Brown Sugar Frosting
1/2 cup packed brown sugar
1/4 cup butter, cubed
2 tablespoons milk
1 3/4 cups confectioner's sugar

In a large bowl, combine the water, mayonnaise and vanilla until well blended. In a large bowl, combine the flour, sugar, cocoa and baking soda, gradually beat into mayonnaise mixture until blended.

Pour into a greased baking pan. Bake at 350F for 30-35 minutes or until a toothpick inserted near the centre comes out clean. Cool completely.

For frosting, in a small saucepan cook and stir brown sugar in butter until bubbly. Remove from the heat and stir in milk. Gradually add confectioner's sugar; beat until smooth. Frost cake.