French Onion Soup - cooking recipe

Ingredients

1/2 yellow onion, peeled and sliced for each bowl
1 tablespoon butter, for each bowl
1 dash dry sherry, for each bowl
1 tablespoon parmesan cheese or 1 tablespoon romano cheese, grated
1 1/2 cups low-sodium beef stock, boiling
salt
1 slice French bread, toasted
1 slice swiss cheese

Preparation

Saute onion slices in butter.
In a 12-ounce soup bowl, add slices of sauteed onion, dry sherry and Parmesan or Romano cheese.
Pour soup stock over all in bowl and add salt to taste.
Serve soup in bowl topped with a slice of French bread covered with Swiss cheese.