1 (12 oz.) chocolate chips
1 (14 oz.) can sweetened condensed milk
2 tbsp. butter
2 c. dry roasted peanuts
1 (10 1/2 oz.) bag miniature marshmallows

Melt chocolate chips with milk and butter. Add peanuts and marshmallows. Spread in well-greased 9x13 inch pan. Chill 2 hours. Cut into squares.