6 tbsp. butter or reg. stick butter
3/4 c. packed light brown sugar
1 egg
1 tbsp. milk
1 tsp. vanilla extract
1 c. all-purpose flour
1/2 tsp. baking soda
1/8 tsp. salt
1/2 c. coarsely chopped nuts (optional)
1 3/4 c. (10-ounce pkg.) Hershey's premium semi-sweet chocolate chunks

Heat oven to 350 degrees. Grease square pan 9 x 9 x 2 inches. In large mixer bowl cream butter and brown sugar until light and fluffy. Add egg, milk and vanilla; beat well. Combine flour, baking soda and salt; add to creamed mixture. Stir in nuts, if desired, and chocolate chunks; spread into prepared pan. Bake 20 to 25 minutes or until lightly browned. Cool completely; cut into bars.