18 oz. chocolate chips
1 (14 oz.) can sweetened condensed milk
Dash salt
1 1/2 tsp. vanilla
1/2 c. chopped nuts, optional

In heavy saucepan melt chips, with sweetened condensed milk. Remove from heat; stir in remaining ingredients. Spread evenly in 8 x 8 inch pan lined with waxpaper. Chill 2 to 3 hours. Turn onto cutting board; peel off paper and cut in squares. Store loosely covered at room temperature.