What do you use as a binding agent for your burgers, to stop it from falling apart?

There are no binding agents in our beef patties. All of our burgers are made from whole cuts of 100% beef from British and Irish farms. We only use whole cuts of forequarter and flank, which are then minced and shaped into burger patties. Once the patties are made, they are frozen, packaged and delivered to our restaurants. We do not add anything to the beef patties except a sprinkle of salt and pepper after cooking. You can find a full ingredient declaration for all food (including our burgers) served in the U.K. by visiting our online nutritional calculator tool here or downloading our Allergen Booklet here.