You don't have to go in the restaurant to get the grapefruit cake. Go to the podium where they are checking Priority Seatings, and ask if you can purchase a slice of the famous grapefruit cake. If they are not swamped with people, the CM's will go out in the back and come back with a slice in a plastic container with a fork so you can enjoy it. I've done this twice, and the second time, they gave me the recipe for it .