1 (12 oz.) pkg. peanut butter flavored chips
1 (4 oz.) can Eagle Brand sweetened condensed milk, not evaporated
1/4 c. butter
1/2 c. chopped peanuts; optional
1 (6 oz.) pkg. semi-sweet chocolate morsels

In large saucepan, melt peanut butter chips, 1 cup sweetened condensed milk, and 2 tablespoons butter. Stir occasionally. Remove from heat, stir in peanuts. Spread mixture onto wax paper lined 8 inch square pan. Melt chocolate morsels, remaining sweetened condensed milk and butter. Spread chocolate mixture on top of peanut butter mixture. Chill 2 hours or until firm. Turn fudge onto table and cut.