1Heat oven to 350°F. Beat sugars, butter, shortening, vanilla and egg in large bowl with electric mixer on medium speed until light and fluffy, or mix with spoon. Stir in flour, baking soda and salt (dough will be stiff). Stir in white baking bar chunks and nuts.
2Drop dough by rounded tablespoonfuls about 2 inches apart onto ungreased cookie sheet. Bake 10 to 12 minutes or until light brown. Cool 1 to 2 minutes; remove from cookie sheet to wire rack.