Spread hamburger out on board. Grate onion into it
(use fairly fine grater to get just juice
and very finely grated onion).
Mix in cream and pepper and form into 6-8 patties.
Cook in heavy skillet with combination of butter
and oil over fairly high heat, 4-5 min. a side.
Salt before serving.
Serve with tomatoes and onions and home fries, and a salad.