I’ve been making this recipe for over 40 years and it’s a hit every time.
1 cup butter, softened 2 cups all purpose flour
1 cup packed brown sugar ¼ tsp salt
1 tsp vanilla 1 large Hershey Bar
1 large egg yolk ½ cup chopped walnuts
Preheat oven to 350 degrees F. Lightly grease a 9×13-inch baking dish.
Beat butter, brown sugar, vanilla extract, and egg yolk in a large bowl; stir in flour and salt. Press dough into prepared baking dish.
Bake in preheated oven until crust is light brown, 25 to 30 minutes.
Melt Hershey Bar in microwave and immediately spread over hot crust. Sprinkle with nuts. Cool for 30 minutes.
Cut into squares.