1/2 cup softened butter
1 cup sugar (I use half sugar and half white Splenda)
1 egg
1 teaspoon vanilla
3 medium mashed ripe bananas
1-1/2 cup all-purpose flour
1 teaspoon baking powder
1 teaspoon baking soda
1/2 teaspoon salt
1/4 cup cocoa
Preheat oven to 350 degrees.
Cream butter and sugar. Add egg and vanilla, beating until thoroughly combined. Blend in bananas.
Add the flour, baking powder, baking soda and salt to creamed mixture. Mix well.
Divide batter in half. Add cocoa to half. Spread into a greased 13 x 9 x 2" pan.
Spread rest of batter on top.
Bake at 350 degrees for 25 minutes until tests done. Cool before cutting.
Freezes good.