3 (6 oz.) pkgs. semi-sweet chocolate morsels
1 (14 oz.) can sweetened condensed milk
Dash salt
1 1/2 tsp. vanilla extract
1/2 c. nuts, chopped (optional)

In heavy saucepan over low heat, melt morsels with milk. Remove from heat; stir in remaining ingredients. Spread evenly into wax paper-lined 8-inch square pan. Chill 2 to 3 hours or until firm. Turn fudge onto cutting board, peel off paper and cut into squares. Store loosely covered at room temperature.