finely chopped onion
Mix all the ingredients together except the beer.
Shape mixture into 6 patties, each about 1-inch thick.
Place the patties in an ungreased baking dish, 10 X 6 X 1 3/4-inches.
Pour the beer over the patties, then cover and refrigerate at least 3 hours. (Meat may turn gray, but is ok)
Remove patties from the marinade.
Broil or grill the patties 4 inches from the heat, turning once, to the desired doneness, about 15 to 20 minutes.