1 (24 oz.) jar dry roasted peanuts
12 oz. Reese's peanut butter chips
1 stick butter
1 can sweetened condensed milk
2 c. mini marshmallows

Grease a 9 x 13 inch cake pan. Sprinkle 1/2 of peanuts in the bottom. Melt butter and chips. Stir in sweetened condensed milk. Add mini marshmallows. Pour this mixture over peanuts, then sprinkle the rest of peanuts on top. Refrigerate.