3 (6 oz.) pkg. semi-sweet chocolate chips
1 (14 oz.) can sweetened condensed milk
1/2 to 1 c. chopped nuts
1 1/2 tsp. vanilla

Combine chips and milk in 1 quart glass bowl. Cook on high for 3 minutes; stir until chips melt and mixture in smooth. Stir in remaining ingredients. Spread evenly into wax paper lined 8 inch pan. Chill 2 hours; turn onto cutting board. Peel off paper. Cut fudge. Store loosely covered at room temperature.