Have to Have Hamburgers

1 lb lean ground beef
1/4 tsp fresh ground black pepper
1/2 tsp salt
1/4 tsp dried or 1 T fresh minced onions
barbecue sauce

Mix all ingredients well and form four 3/4" thick patties.  Combine barbecue sauce and ketchup and brush patties.  Place on medium hot grill for about 6 minutes, basting frequently with the sauce.  Turn patties and cook another 6 minutes or until done.