French Onion Soup
["1 qt. beef bouillon or stock", "3 c. thinly sliced sweet onions", "3 Tbsp. butter", "1 tsp. salt", "2 Tbsp. flour", "1 c. Parmesan or Romano cheese", "1 Tbsp. sugar (if sweet onions are not available)"]
["Pour bouillon in crock-pot.", "Cook onions slowly in a large skillet in butter.", "Cover and let cook for about 15 minutes. Uncover and add salt and flour (and sugar).", "Cook on low for 6 to 8 hours (high 3 hours).", "Before serving, top with grated cheese. Recipe maybe doubled for a 5-quart crock-pot."]
["beef bouillon", "sweet onions", "butter", "salt", "flour", "Parmesan", "sugar"]