1 pkg. yellow cake mix
1/8 tsp. baking soda
1 c. mashed bananas (2-3 med. ripe bananas)
1/2 c. chopped nuts (optional)

Mix together the yellow cake mix as directed on the package, except, stir 1/8 teaspoon baking soda into dry mix before adding liquid. Also, use 1/4 cup less water than package directions. To cake mix add mashed bananas and nuts if desired. Bake according to package directions.