14 oz. sweetened condensed milk
12 oz. semi sweet chocolate chips
1 oz. square unsweetened chocolate
1 1/2 c. chopped nuts
1 tsp. vanilla extract

Butter an 8"x8" pan. In heavy saucepan heat milk, chocolate chips and unsweetened chocolate over low heat, stirring constantly until melted and smooth. Remove from heat and stir in nuts and vanilla. Spread in buttered pan. Refrigerate until firm.