1 lg. ripe banana
1/2 c. butter, softened
1/2 c. brown sugar
1/2 tsp. cinnamon
1/4 to 1/2 c. chopped nuts
1/2 tsp. vanilla
1 egg
1 c. flour
1 tsp. baking powder

Mix flour with baking powder. In large bowl of mixer beat banana, butter, sugars and flavorings at high speed until well blended. Beat in egg. Stir in flour mixture until well blended. Spread evenly in well greased 9x13 pan.

Sprinkle with nuts. Bake in preheated 350 degree oven 25 minutes or until toothpick inserted in center comes out clean. Cool before cutting. 30 bars.