36 large marshmallows
1 1/2 c. chocolate chips
1/2 c. chunk peanut butter
2 tbsp. butter

Line 8 inch square pan with aluminum foil. Cover bottom with packed marshmallows. Combine chocolate, peanut butter and butter. Melt over hot water and blend thoroughly. Pour chocolate over marshmallows and work into spaces between marshmallows. Chill thoroughly. Invert and cut into pieces.