Spit chicken in half horizontally and pound chicken breast with a kitchen mallet to tenderize. This part is optional. With a pastry brush, coat both sides of the chicken with oil. In a separate bowl add sugar & the dry Italian Salad dressing packet. Mix well to combine. Sprinkle both sides of the chicken with the sugar mixture. Place in a 9 x 13 baking pan. Top chicken with any remaining brown sugar mixture. Bake at 350 degrees for 40 minutes.