1 c. butter, melted
1 c. brown sugar, firmly packed
4 c. quick Quaker oats
3/4 c. chunky peanut butter
1 (12 oz.) pkg. chocolate chips

Mix butter, brown sugar, and oats together. Bake in greased jelly roll pan (15 x 8 x 2 inches) or on a cookie sheet with 1 inch sides for 15 minutes at 350 degrees. While still warm, spread peanut butter over baked mixture. Melt chocolate chips in top of double boiler. Spread over peanut butter. Cool on refrigerator. Cut in squares.