I am giving this 5*'s for taste. You didn't give a size for the cookie sheet. I waited till I had everything mixed and then decided it would fit fit on a 9"x13" inside measurement sheet.I creamed the butter and sugar and added the eggs and vanilla. Mixed the dry ingredients together before adding to butter mixture. I liked the ease of not having to make cookies, just spread in the pan. It could easily be made into cookies if someone wanted to.