French Onion Soup
["5 c. thinly sliced onions (1 1/2 lb.)", "3 Tbsp. butter", "1 Tbsp. vegetable oil", "1 tsp. salt", "1/4 tsp. sugar", "3 Tbsp. flour", "3 (10 3/4 oz.) cans beef bouillon", "3 c. boiling water", "1/2 c. dry white wine", "salt and pepper to taste", "2 oz. Swiss cheese, slivered", "16 (1/2 to 1-inch) French bread slices", "1/2 c. grated Parmesan cheese", "1 Tbsp. melted butter"]
["Cook onions slowly with butter and oil in heavy covered 4-quart saucepan for 15 minutes.", "Stir in salt and sugar.", "Cook, uncovered, over moderate heat, 35 to 40 minutes, stirring often until onions are a deep golden brown.", "Sprinkle with flour; stir 3 minutes.", "Remove from heat; add boiling bouillon and water to onion mixture.", "Blend well.", "Add wine and seasonings.", "Simmer partially covered, 35 minutes.", "While soup is simmering, place 1 layer of French bread slices on cookie sheet and bake at 325\u00b0 for 30 minutes or until they are dried and golden brown."]
["onions", "butter", "vegetable oil", "salt", "sugar", "flour", "beef bouillon", "boiling water", "white wine", "salt", "Swiss cheese", "bread", "Parmesan cheese", "butter"]