1/2 cup peanut butter
2 ripe bananas, mashed
1/2 cup butter or margarine, melted
1 lb. light brown sugar
2 eggs
2 3/4 cups all-purpose flour
2 1/2 tsp. baking powder
1 cup lightly salted peanuts
3/4 to 1 cup chocolate chips

Mix together the peanut butter, mashed bananas, butter, brown sugar, and eggs with a  mixer on medium speed. Sift together the flour with the baking powder. Add to the peanut butter banana mixture. Mix on low speed until blended.  Stir peanuts and chocolate into batter.  Spread into a greased 10" x13" lightly greased baking dish. Bake for 30 minutes at 325*. Let cool and cut into bars.