Ingredients
3 large Spanish or Bermuda Onions, thinly sliced
6 T. butter or margarine
5 10 1/2-oz. cans condensed beef broth
1/2 c. dry sherry
3 T. and 1 t. Worcestershire sauce
freshly ground pepper
6 slices French or rye bread, 1/2 inch thick, toasted
3/4 c. grated Parmesan cheese
6 slices Gruyere or Swiss cheese
Directions
In large saucepan or Dutch oven, cook onion in butter until tender, but not brown, about 20 minutes.
Add beef broth, sherry, Worcestershire sauce and pepper, bring to a boil.
Pour into 6 individual oven-proof bowls.
Float a slice of bread in each bowl (rub toast with a cut clove of garlic, if desired) sprinkling with Parmesan cheese and top with Gruyere or Swiss cheese slice.
Bake in 375° oven for 15 minutes, or boil till cheese is bubbly, about 5 minutes.
This soup freezes well.
Servings\Yield
Serves 6 people
Nutrition Facts
Nutrition Per Serving - Calories: 330; Total Fat: 21g (Saturated Fat: 12g); Cholesterol: 55mg; Sodium: 1680mg; Total Carbohydrates: 18g (Dietary Fiber: 2g, Sugars: 5g); Protein: 16g
*Nutrition information is provided as a general estimate only. Nutrient information is not available for all ingredients, and is based on available nutrient data. Variations may occur based on ingredient brands and preparation methods.
🧑🍳 The Cook:
Helen R. Iob
🔑 Keywords:
soup,
French,
onions
🗂️ Categories: 🥣
Soups & Stews, 🌎
World Food
📚 Collections:
Cooking with Carl, Hugh & Your Friends,
The TFR Cookbook
French Onion Soup - Au Gratin was added on February 02, 2007 and last updated on October 11, 2025.
*Serving suggestion only. 😂 If a food photo doesn't look like it was taken by a monkey named Frank, it was most likely AI generated and not the result of Frank's minimal culinary or photographic skills. Unless you failed the "I'm not a robot" test, your recipes will probably not look like the ones in the pictures. See Creamy Turkey Veggie Soup to read more about AI images.
📄 A Quick Note About The Recipes At The Ferguson Recipes: We love sharing recipes, but please be aware that most haven't been professionally tested in our kitchen or independantly verified. Your safety is important to us, so always practice safe food handling and cooking techniques. Cook smart and use your best judgment!
Eggs: If you make a recipe that uses raw eggs, please consider using pasteurized eggs.
Allergens: Food allergens have not been identified in each individual recipe. Please use caution if you have any food allergies. Have questions about a specific recipe? Feel free to
reach out to us.