Form equal sized patties. Makes four large or six medium patties.
Patties will be somewhat soft because of the egg so place on cooking surface carefully and turn by slipping spatula under entire burger and then lifting all at once.
Grill to desired doneness – about 3-5 minutes per side, turning carefully. OR
Alternatively, Cook in skillet over medium heat until done, about 3 minutes per side, plus an additional 3 minutes on first side while pan is covered to make sure interior of meat reaches even temperature.