adapted from: Simple Shortcut Recipes
submitted by Jennifer Crisp
18 1/2 oz. pkg. yellow cake mix
1/2 c. brown sugar, packed
1 c. banana, mashed
3/4 c. buttermilk
1/2 c. oil
3 eggs, beaten
1 tsp. cinnamon
Combine dry cake mix and remaining ingredients in a large bowl. Using an electric mixer, beat on low speed for one minute. Increase to medium; beat an additional 2 minutes. Divide between 2 greased and floured 9''x5'' loaf pans. Bake at 350 degrees for 40-45 minutes, until a toothpick inserted in center comes out clean. Makes 2 smaller loaves.
Jenn's Notes: Since this cake is so soft, I don't know how well it would turn out of a pan (like a bundt or round pan). I sprayed my bread pan with cooking spray and forgot to flour it and it was pretty hard to get out of the pan in one piece.