Rich Onion Soup - cooking recipe

Ingredients

2 lb. onions, sliced
6 Tbsp. butter
2 Tbsp. corn oil
1/2 tsp. sugar
1/2 tsp. dry mustard
3 Tbsp. flour
2 qt. beef broth (3 cans broth, 3 cans water)
1/3 c. Holland House white cooking wine
salt and pepper to taste
French bread slices, toasted
Mozzarella cheese

Preparation

In large kettle, cook onions with butter and oil over low heat for 30 minutes, stirring occasionally.
Add sugar and mustard. Cook 30 minutes longer.
Blend in flour.
Stir in broth and wine. Cook 30 minutes more.
Season to taste.