01 -
3 large white onions, sliced.
02 -
3 tablespoons butter.
03 -
2 tablespoons brown sugar.
04 -
64 ounces beef broth, reduced sodium.
05 -
1 tablespoon Worcestershire sauce.
06 -
1 clove garlic, minced.
07 -
1/3 cup dry sherry.
08 -
4 sprigs fresh thyme or 1 teaspoon dried thyme.
09 -
1 bay leaf.
10 -
8 slices French bread, stale or dry.
11 -
3/4 cup shredded Gruyere cheese.
12 -
1/2 cup shredded Emmental cheese.
13 -
6 tablespoons shredded Parmesan cheese.