1 (15 oz.) can sweetened condensed milk
2 (6 oz.) pkgs. semi sweet chocolate chips
2 sq. unsweetened chocolate
1 c. chopped pecans, optional

Melt chocolate in top of double boiler. Add milk to melted chocolate. Beat until smooth and thickened. Stir in pecans. Pour into an 8 x 8 x 2 inch buttered pan. When firm, cut into squares.