4 large onions, thinly sliced (I usually find 2 is enough)
4 Tbsps butter
4 10 oz Cans of beef broth (I just used Oxo cubes and water)
1/2 cup dry sherry (I don't use this at all)
2 tsps Worcestershire sauce
dash of pepper
6 slices french bread (toasted is best, but any bread will do)
3/4 cup parmesan cheese
1 to 2 cups grated mozza, greyere, cheese (whatever kind you like!)

Cook onions in butter til tender, but not brown. Add broth, sherry, worcestershire sauce and pepper and bring to a boil. Pour into individual ovenproof bowls. Top with french bread, parmesan and mozza cheese. Place under broiler and heat until cheese bubbles.

I've melted the cheese in the microwave, it doesn't get brown, but it's quick and still tastes delish! Also, add more worcestershire sauce if desired (we love the stuff)