Marbled Banana Bars

Directions

1. 1
   Heat oven to 350F.
2. 2
   Grease 13x9-inch baking pan; set aside.
3. 3
   Combine sugar and margarine in bowl.
4. 4
   Beat at medium speed, scraping bowl often, until creamy.
5. 5
   Add bananas, egg and vanilla; continue beating, scraping bowl often, until well mixed.
6. 6
   Add flour, baking powder, baking soda and salt; beat at low speed, scraping bowl often, until well mixed.
7. 7
   Drop 1 1/2 cups batter by spoonfuls into prepared pan.
8. 8
   Add cocoa to remaining batter in bowl; beat at low speed until well mixed.
9. 9
   Drop spoonfuls of chocolate batter in pan over banana batter.
10. 10
    Gently swirl chocolate batter through banana batter using knife.
11. 11
    Bake 20-25 minutes or until toothpick inserted in center comes out clean.
12. 12
    Cool completely.
13. 13
    Sprinkle with powdered sugar just before serving.
14. 14
    Cut into bars.