French Onion Soup - cooking recipe

Ingredients

1 qt. beef bouillon (2 cans plus 2 cans water)
3 c. thinly sliced yellow onions
1/4 c. butter
1 1/2 tsp. salt
1/4 c. sugar
2 Tbsp. flour
grated Mozzarella cheese
grated Parmesan cheese
croutons or French bread, cut up

Preparation

Saute onions in butter slowly, covered.
Cook 15 minutes on low (not browned).
Add salt, sugar and flour, stir well.
Put all in crock-pot with bouillon.
Cook 6 to 8 hours on low or 3 hours on high.
Place croutons in bowl.
Add soup.
Top with grated cheeses.
Brown a little under broiler.