Ingredients

Instructions

  1. In a mixing bowl, cream butter and sugar.
  2. Add egg and vanilla; beat until thoroughly combined.
  3. Blend in the bananas.
  4. Combine the flour, baking powder, baking soda and salt; add to creamed mixture and mix well.
  5. Divide batter in half.
  6. Add cocoa to half; spread into a greased 13-in x 9-in pan.
  7. Spoon remaining batter on top and swirl with a knife.
  8. Bake at 350 degrees for 25 minutes or until the bars test done.
  9. Cool.