![](https://cdn.statically.io/img/www.allrecipes.com/thmb/ly4haPqLReJ3aIzBPngJLIHGzro=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/7646256-29cc39bc17a14564a191e88fe2481f63.jpg)
Ingredients
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3 tablespoons butter
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3 tablespoons olive oil
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6 white onions, sliced into thin rings
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1 clove garlic, minced
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1 pinch salt, plus more to taste
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1 ½ teaspoons ground black pepper, plus more to taste
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1 tablespoon brown sugar
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1 tablespoon dried thyme
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⅓ cup port wine
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1 (32 ounce) carton beef stock
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5 slices French bread
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5 slices Swiss cheese
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¼ cup shredded Parmagiano-Reggiano cheese
Directions
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Melt butter with olive oil in a large pot over medium-low heat. Add onions and garlic; season with a pinch of salt and black pepper. Cook onion mixture in hot butter-oil until caramelized, stirring every 10 minutes to keep from browning too quickly, about 1 hour.
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Stir brown sugar and thyme into caramelized onions; allow sugar to melt into onions, about 2 minutes. Pour in wine and bring to a boil while scraping the browned bits of food off of the bottom of the pan with a wooden spoon; continue simmering for 5 more minutes. Pour in beef stock; cook for 10 more minutes. Season soup with salt and pepper.
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Preheat the oven's broiler to high. Place 5 oven-safe crocks onto a baking sheet.
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Ladle soup evenly into the crocks. Top each with a French bread slice; cover with a Swiss cheese slice and sprinkle with Parmagiano-Reggiano cheese.
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Cook soups under the preheated broiler until cheese is melted and browned, 2 to 3 minutes.
Nutrition Facts (per serving)
455 | Calories |
26g | Fat |
37g | Carbs |
17g | Protein |
Nutrition Facts | |
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Servings Per Recipe 5 | |
Calories 455 | |
% Daily Value * | |
Total Fat 26g | 33% |
Saturated Fat 12g | 59% |
Cholesterol 48mg | 16% |
Sodium 426mg | 19% |
Total Carbohydrate 37g | 13% |
Dietary Fiber 4g | 14% |
Total Sugars 12g | |
Protein 17g | 35% |
Vitamin C 22mg | 25% |
Calcium 351mg | 27% |
Iron 3mg | 18% |
Potassium 416mg | 9% |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.