Chocolate Chunk Bars
["1 3/4 c. flour", "3/4 tsp. baking soda", "1/4 tsp. salt", "3/4 c. (1 1/2 sticks) butter or margarine, softened", "1/2 c. granulated sugar", "1/2 c. brown sugar, firmly packed", "1 egg", "1 tsp. vanilla", "1 pkg. semi-sweet chocolate chunks"]
["Mix flour, baking soda and salt in medium bowl; set aside."]
["flour", "baking soda", "salt", "butter", "sugar", "brown sugar", "egg", "vanilla", "semi-sweet chocolate chunks"]