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One Pot French Onion Pasta

A comforting dish that combines the savory goodness of caramelized onions, rich cheese, and creamy sauce, all cooked in a single pot for easy preparation and minimal cleanup.
Servings 4 servings
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes

Ingredients

Onion Base

  • 3 pieces Yellow Onions (thinly sliced)
  • 3 tablespoons Butter
  • 2 tablespoons Extra Virgin Olive Oil
  • 4 cloves Garlic (minced)
  • 1/4 cup White Wine (OPTIONAL)
  • 1 teaspoon Fresh Thyme (or 1/2 teaspoon dried thyme)
  • 1 teaspoon Black Pepper

Liquid Base

  • 4 cups Beef Broth

Main Ingredients

  • 12 ounces Pasta (of choice)
  • 3/4 cup Heavy Cream (or half-n-half)
  • 6 ounces Gruyere Cheese (shredded)
  • 2 ounces Parmesan Cheese (shredded)
  • 1/2 to 1 teaspoon Worcestershire Sauce (OPTIONAL)

Instructions

Caramelizing Onions

  • Heat butter and olive oil in a large skillet or Dutch oven over medium-low heat.
  • Add the sliced onions with a pinch of salt. Stir to coat in the butter/oil.
  • Cook slowly for 25-30 minutes, stirring occasionally, until the onions are deeply golden and caramelized and soft.
  • Tip: If onions start to burn, add a splash of water or broth and lower the heat. Patience is key; this step develops the deep, sweet-savory flavor.

Adding Flavors

  • Add the garlic, thyme, and black pepper, cooking until fragrant (about 1 minute).
  • Pour in the white wine (if using) and scrape up the browned bits from the bottom of the pan.
  • Cook until the wine has mostly evaporated. If you aren’t using white wine, add the beef broth at this step.
  • Stir in the beef broth and simmer for 5 minutes.

Cooking Pasta

  • Add pasta and cook until perfectly al dente, according to package instructions.
  • Taste the pasta to make sure it is done cooking.

Finishing Touches

  • Lower heat, add the cream, and stir until the sauce is silky.
  • Add Worcestershire sauce if using, and taste to adjust seasoning.
  • Off the heat, stir in the shredded Gruyère and parmesan cheese until melted and creamy.
  • Garnish with extra parmesan and serve immediately.

Notes

This dish provides a good balance of carbohydrates, protein, and fats. If you have leftovers, store them in an airtight container. It will last for 3-4 days in the fridge and can be frozen for up to 2 months. Make sure to add a splash of broth or cream when reheating to restore creaminess.
Calories: 600kcal
Course: Dinner, Main Course
Cuisine: Comfort Food, French
Keyword: Comfort Food, Easy Dinner, French Onion, One Pot Meal, Pasta