French Onion Soup - cooking recipe

Ingredients

5 c. thinly sliced yellow onions
3 Tbsp. butter
1 Tbsp. oil
1 tsp. salt
1/4 tsp. sugar
3 Tbsp. all-purpose flour
2 (10 1/2 oz.) cans undiluted beef bouillon
3 cans water, divided
1/2 c. dry vermouth
salt and pepper to taste
8 slices French bread
1 1/2 c. grated Swiss cheese

Preparation

Cook onions in butter and oil, covered, over low heat for 15 minutes.
Uncover, increase to moderate heat.
Add sugar and salt. Cook 30 to 40 minutes, stirring often.
Blend in flour; stir three minutes until smooth.
Stir in bouillon and one can of water.
Boil remaining two cans water and add to mixture along with vermouth, salt and pepper. Simmer 30 to 40 minutes.
Toast French bread on both sides.
Top with cheese and broil until it melts.
Pour soup in bowls and top with a slice of bread.