Cut up onions. Sautee in butter until onions are clear.

Pour in beef broth, water, and beef boullions.

Cook for about 20 minutes.

Put in soup crocks. Cover with parmesean cheese and gruyere swiss. Float toasted bread on top. Top with sliced mozzarella.

Put in oven 350 for 5-10 minutes.

Then broil until lightly brown.