1/4 c. unsalted butter
3 med. onions, thinly sliced
1 1/2 c. dark beer
2 c. beef stock
2 c. chicken soup
12 (1/2 inch thick) French bread, toasted
6 thin slices Gruyere cheese
Freshly grated Parmesan cheese

Melt butter in pan. Add sliced onions and cook until golden. Add beer and let come to a boil. Last add beef stock and chicken stock. Let cook until it comes to a full boil. Serve with French bread and cheese.