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5.0 from 9 votes

One Pot French Onion Soup Pasta

If you love the flavors of French onion soup, you've got to try this One Pot French Onion Soup Pasta! It combines caramelized onions and mushrooms in a silky sauce infused with garlic and thyme. Finish it with a shower of freshly grated Gruyère and you've got the ultimate bowl of comfort.

Prep Time
15 mins
Cook Time
1 hr 15 mins
Total Time
1 hr 30 mins
Servings: 4 servings
Calories: 674 kcal
Course: Main Course
Cuisine: French

Ingredients

  • 2 tablespoons unsalted butter or olive oil (or combination)
  • 3 large yellow onions peeled, halved and cut into ¼-inch thick slices
  • kosher salt
  • 8 ounces (225 grams) cremini mushrooms wiped clean, trimmed and thinly sliced
  • 4 cloves garlic crushed or minced
  • freshly ground black pepper
  • ½ teaspoon dried thyme
  • ½ cup white wine
  • 2 tablespoons port or madeira wine
  • 2 tablespoons all-purpose flour
  • 4 cups beef broth or stock
  • 1 cup water
  • 1 teaspoon Worcestershire sauce 
  • 1 pound (455 grams) short pasta such as rigatoni, penne, orecchiette, or shells
  • ¼ cup (20 grams) finely grated Gruyère or Comté cheese or more as desired (you could also use Parmigiano-Reggiano or Pecorino Romano but it won’t be the same)
  • chopped chives for garnish (optional)

Instructions

    Cup of Yum
  1. Heat a large Dutch oven or pot over medium heat and melt the butter. Add the onions and a big pinch of salt. Stir to coat with the melted butter, cover and cook for 10 minutes until soft and translucent. Uncover and continue to cook over medium-low to medium heat, stirring occasionally to keep the onions from sticking, for another 30 to 45 minutes until caramelized.
  2. Add the mushrooms and garlic and stir to combine with the caramelized onions. Season with salt and pepper and add the thyme. Cook, stirring occasionally, until mushrooms are softened, about 5 minutes.
  3. Deglaze the pot by adding the white wine and port and scraping up any browned bits on the bottom. Stir in the flour to create a smooth paste and cook for another minute.
  4. Gradually add the broth, water, and Worcestershire sauce, stirring regularly to avoid any lumps, and raise the heat to high to bring to a boil. Taste and season with salt and pepper. You may want to over-salt the mixture because a lot of the salt will absorb into the pasta as it cooks, leaving the resulting sauce less seasoned.
  5. Stir in the pasta, lower the heat to medium-low, cover and cook, stirring occasionally until the pasta is al dente and most of the liquid has absorbed, about 15 to 20 minutes (depending on the pasta shape). I find it can take longer than what the pasta packaging indicates because it’s cooking with less liquid over a lower temperature.
  6. Taste and season with salt and pepper if needed. Stir in the cheese, allowing it to dissolve and melt into the sauce. It will help thicken it slightly. Serve immediately with more cheese and chopped chives, if desired.

Nutrition Information

Calories 674kcal (34%) Carbohydrates 122g (41%) Protein 25g (50%) Fat 12g (18%) Saturated Fat 5g (25%) Cholesterol 19mg (6%) Sodium 963mg (40%) Potassium 1169mg (33%) Fiber 9g (36%) Sugar 8g (16%)

Nutrition Facts

Serving: 4servings

Amount Per Serving

Calories 674

% Daily Value*

Calories 674kcal 34%
Carbohydrates 122g 41%
Protein 25g 50%
Fat 12g 18%
Saturated Fat 5g 25%
Cholesterol 19mg 6%
Sodium 963mg 40%
Potassium 1169mg 25%
Fiber 9g 36%
Sugar 8g 16%

* Percent Daily Values are based on a 2,000 calorie diet.