1 (12 oz.) pkg. semi sweet chocolate chips
1 (14 oz.) can sweetened condensed milk
2 tbsp. butter
2 c. dry roasted peanuts
1 (10 1/2 oz.) pkg. mini marshmallows

In top of double boiler, over boiling water, melt chocolate chips with milk and butter. Remove from heat. In a large bowl, combine nuts and marshmallows. Fold in chocolate mixture. Spread on wax paper lined 9 x 13 inch pan. Chill until firm, at least 2 hours. Remove from pan, peel off wax paper and cut into squares. Cover and store in refrigerator until serving. Serve at room temperature.