In order for your chicken burgers to fall apart, you need binders. Good binders for burgers and meatballs are eggs, bread crumbs, milk-soaked bread, and mayonnaise. This recipe has a good amount of binders so your burgers should be sturdy. If your chicken mixture feels too thin, you can always add a couple more tablespoons of bread crumbs. Another big reasons the burgers might fall apart is the pan. Some problems may include: pan has scratches, it’s not clean enough, not non-stick, or there is not enough oil.