French Onion Soup - cooking recipe

Ingredients

1 qt. beef bouillon or brown stock
3 c. thinly sliced, yellow onions
3 Tbsp. butter
1 tsp. salt
1 Tbsp. sugar
2 Tbsp. flour
1 c. grated Parmesan cheese

Preparation

Pour bouillon or stock in crock-pot.
Cook onions slowly in large skillet in butter.
Cover and let cook for about 15 minutes. Uncover and add sugar, salt and flour.
Stir well.
Add to stock. Cover and cook on low, 6 to 8 hours (high for 3 hours).
Before serving, top with grated cheese.