3/4 c. brown sugar
1 1/2 c. powdered sugar
1 c. chocolate chips
1/4 c. melted butter
2 c. peanut butter
1/2 c. butter

Mix sugars, butter and peanut butter together and pat into a 13x9 inch pan. Melt chocolate chips and butter and spread over peanut butter mixture. Refrigerate for about 5 minutes and cut into small pieces.