Description
This French Onion Pasta recipe transforms the classic rich, caramelized onion flavors of French onion soup into a creamy, cheesy pasta dish. Featuring slow-cooked onions, a savory broth-based sauce enriched with cream, and melted Gruyère and Parmesan cheeses, this comforting recipe is perfect for a cozy, flavorful meal ready in about 40 minutes.
Ingredients
Scale
Sauce & Onions
- 2 tbsp unsalted butter
- 2 tbsp olive oil
- 2 large yellow onions, thinly sliced
- 1 tsp salt
- ½ tsp black pepper
- 1 tsp sugar
- ½ tsp dried thyme
- ¼ cup dry white wine (optional)
- 2 cloves garlic, minced
- 1 tbsp all-purpose flour
- 2 cups beef or vegetable broth
- ½ cup heavy cream
Pasta & Cheese
- 8 oz pasta (penne, rigatoni, or your choice)
- 1 cup shredded Gruyère cheese
- ¼ cup grated Parmesan cheese
Garnish
- Fresh thyme or parsley, for garnish (optional)
Instructions
- Caramelize the Onions: Heat butter and olive oil in a large skillet over medium heat. Add the thinly sliced onions, salt, black pepper, sugar, and dried thyme. Cook, stirring occasionally, for 25-30 minutes until the onions are deeply golden brown and caramelized, developing a rich sweet flavor.
- Deglaze & Build the Sauce: Pour in the white wine, if using, and allow it to cook for about 2 minutes until mostly reduced. This steps lifts the flavorful browned bits off the pan for more depth.
- Add Garlic and Flour: Stir in the minced garlic and cook for 1 minute until fragrant. Then sprinkle the flour evenly over the onions, stirring well to coat and cook out the raw flour taste.
- Incorporate Broth: Gradually pour in the beef or vegetable broth while stirring constantly to avoid lumps and thicken the sauce.
- Add Cream and Simmer: Stir in the heavy cream and lower the heat to a gentle simmer. Let the sauce thicken slightly and meld flavors while you prepare the pasta.
- Cook the Pasta: Meanwhile, bring a large pot of salted water to a boil and cook the pasta according to package instructions until al dente. Drain well.
- Combine Pasta and Sauce: Add the drained pasta directly to the skillet with the caramelized onion sauce, tossing to coat the noodles thoroughly.
- Add Cheese: Stir in the shredded Gruyère and grated Parmesan cheeses, mixing until melted and the sauce is creamy and cheesy.
- Serve and Garnish: Serve the pasta hot, garnished with fresh thyme or parsley if desired for a pop of color and fresh herb aroma.
Notes
- Using dry white wine is optional but enhances the sauce’s depth; substitute extra broth if preferred.
- Gruyère cheese is key for its nutty flavor and good melting quality; you can substitute with Swiss cheese if unavailable.
- Caramelizing onions slowly is crucial for developing the deep sweetness and color that make this dish special.
- To make it vegetarian, use vegetable broth; for a richer flavor, beef broth can be used if not vegetarian.
- Leftovers can be refrigerated in an airtight container for up to 3 days and reheated gently on the stovetop.
