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A close-up of creamy One-Pot French Onion Pasta garnished with fresh thyme, ready to be served.

One-Pot French Onion Pasta: The Ultimate Umami Twist

Experience the comforting embrace of French onion soup in a convenient one-pot pasta. This recipe features deeply caramelized onions, a secret miso umami boost, and tender pasta for a gourmet weeknight meal with minimal cleanup.
Prep Time 20 minutes
Cook Time 50 minutes
Total Time 1 hour 10 minutes
Servings: 4
Course: dinner, Main Dish
Cuisine: French, Italian
Calories: 600

Ingredients
  

  • ¼ cup olive oil
  • 3 yellow onions thinly sliced
  • ½ teaspoon granulated sugar for caramelization catalyst
  • 4 garlic cloves minced
  • 8 oz cremini mushrooms sliced
  • 1 tbsp fresh thyme
  • ½ cup dry white wine
  • 2 tbsp all purpose flour
  • 2 cups beef broth (or vegetable broth)
  • 2 cups water
  • 1-2 teaspoons white or yellow miso paste for umami boost
  • 12 oz dried orecchiette or other short cut pasta
  • 1 tbsp sherry vinegar
  • Salt to taste
  • freshly ground black pepper to taste
  • Fresh herbs for serving (optional)
  • Toasted breadcrumbs for serving (optional)

Equipment

  • Large skillet
  • Dutch oven

Method
 

Caramelizing the Onions
  1. Heat the olive oil in a large skillet or Dutch oven over medium heat. Add the thinly sliced yellow onions along with a generous pinch of salt and 1/2 teaspoon of granulated sugar. Cook, stirring frequently every 3-4 minutes for about 25-30 minutes, until the onions are deeply caramelized to a rich, sweet, golden-brown color.
Building the Flavor Base
  1. Add the minced garlic, sliced cremini mushrooms, and fresh thyme to the pan with the caramelized onions. Sauté for another 3-4 minutes until the mushrooms have softened and the garlic is fragrant.
  2. Pour in the dry white wine to deglaze the pan, scraping up any browned bits from the bottom. Stir in the all-purpose flour and cook for 2-3 minutes, letting it thicken and ensuring no raw flour taste.
Adding Umami and Pasta
  1. Pour in the beef broth (or vegetable broth) and water, then season with salt and freshly ground black pepper. Stir in 1-2 teaspoons of white or yellow miso paste until completely dissolved for umami depth.
  2. Bring the mixture to a boil, then add the orecchiette pasta. Cook for 8-10 minutes, or until the pasta is al dente (tender with a slight bite). Adjust liquid if needed, as cook times vary for different pasta shapes.
The Finishing Touch
  1. Once the pasta is perfectly cooked, turn off the heat. Stir in the sherry vinegar to brighten the rich flavors and provide balance.
  2. Serve your One-Pot French Onion Pasta warm, garnished with fresh herbs and toasted breadcrumbs if desired.

Nutrition

Calories: 600kcalCarbohydrates: 70gProtein: 20gFat: 25gSaturated Fat: 5gCholesterol: 10mgSodium: 800mgPotassium: 300mgFiber: 8gSugar: 10gVitamin C: 5mgCalcium: 50mgIron: 2mg

Notes

Mastering onion caramelization is key for this dish; use a heavy-bottomed pot and stir every 3-4 minutes for deep, sweet flavor. The final splash of sherry vinegar brightens rich flavors, and miso paste adds essential umami. Aim for al dente pasta as it continues to cook off heat.
Nutrition information is estimated based on common ingredients and serving sizes and may vary.

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