Marbleized Squares - cooking recipe

Ingredients

1/2 c. butter
6 Tbsp. sugar
6 Tbsp. brown sugar
1 egg
1/2 tsp. vanilla
1 c. sifted flour
1/2 tsp. salt
1/2 tsp. baking powder
1/2 c. chopped walnuts
1 (6 oz.) pkg. semi-sweet chocolate bits

Preparation

Beat butter until light and add white and brown sugar.
Beat until light and fluffy.
Beat in egg and vanilla until thoroughly mixed.