The cake itself is made from scratch to make three 9x9 layers. The cake recipe is from here
- 3 cups packed brown sugar
- 1 cup butter or margarine, softened
- 4 eggs
- 2 teaspoons vanilla extract
- 2 2/3 cups all-purpose flour
- 3/4 cup baking cocoa
- 1 tablespoon baking soda
- 1/2 teaspoon salt
- 1 1/3 cups sour cream
- 1 1/3 cups boiling water
In a mixing bowl, cream brown sugar and butter. Add eggs, one at a time, beating well after each addition. Beat on high speed until light and fluffy. Blend in vanilla.
Combine flour, cocoa, baking soda and salt in other mixing bowl.
Add dry mix alternately with sour cream to the creamed mixture. Mix on low just until combined.
Stir in water until blended.
Pour into three greased and floured 9x9 baking pans.
Bake at 350 degrees F for 35 minutes. Cool in pans 10 minutes; remove to wire racks to cool completely.