1 cup packed brown sugar
1 cup butter or margarine (softened)
1 teaspoon vanilla extract
1 egg yolk
2 cups all-purpose flour
1/4 teaspoon salt
4 ounces milk chocolate (broken into pieces)
1/2 cup chopped nuts
Heat oven to 350º. Beat brown sugar, butter, vanilla and egg yolk in large bowl with electric mixer on medium speed, or mix with spoon. Stir in flour and salt. Press in ungreased rectangular pan, 13 x 9 inches. Bake 25 – 30 minutes or until very light brown. Immediately place milk chocolate pieces on baked crust. Let stand about 5 minutes or until softened; spread evenly. Sprinkle with nuts. Cool 30 minutes.