2 c. sifted flour
2 tsp. baking powder
1/2 tsp. salt
2/3 c. butter or shortening
2/3 c. sugar
2/3 c. brown sugar, firmly packed
1 tsp. vanilla
1 egg
1 c. mashed ripe bananas (about 2 med. bananas)
1 (6 oz.) pkg. semi-sweet chocolate chips

Sift flour, baking powder and salt together. Cream butter, sugar and brown sugar until light and fluffy. Beat in vanilla and egg. Blend in mashed bananas, then the flour mixture. Stir in chocolate chips. Spread evenly in greased and floured pan (10 1/2" x 15 1/2") and bake 350 degrees for 20 to 25 minutes or until golden brown and beginning to shrink from sides of pan. Cool on rack for 15 minutes and cut into bars. Store in a tightly covered container.