1/2 c. crunch style peanut butter
1/3 c. softened butter
3/4 c. firmly packed brown sugar
3/4 c. sugar
2 eggs
2 tsp. vanilla
1 c. flour
1 tsp. baking powder
1/4 tsp. salt

Combine butters and sugars; beat until creamy. Gradually beat in 2 eggs and vanilla. In small bowl combine dry ingredients. Blend into peanut butter mixture. Spread into greased 13x9-inch baking pan. Sprinkle one 12-ounce package chocolate chips over surface. Place in 350 degree oven for 5 minutes. Remove from oven; run knife through to marbleize. Return to oven. Bake at 350 degrees for 30 minutes. Cool; cut into 2x1-inch bars. A break from usual fare.