Line ungreased 9 x 13 pan with club crackers. Break apart on perforations and lay close together and cover pan.

Boil together for 5 minutes; stir constantly (as it burns) : 1 stick butter 3/4 c. brown sugar 1/2 c. white sugar 1/3 c. milk

While hot, pour over crackers. Lay another layer of club crackers on top. Melt 2/3 cup chunky peanut butter and 1 cup chocolate chips. Spread over crackers. Cool, cut and enjoy!