What is one pot French onion pasta made of?

One pot French onion pasta is made from simple ingredients: yellow onions slowly caramelized in butter, garlic, thyme, beef broth, pasta, heavy cream or cream cheese, and shredded cheese (like Gruyère or mozzarella). Everything is cooked in one pot—from sautéing onions to simmering pasta—creating a rich, creamy dish packed with flavor and minimal cleanup.

Can I use caramelized onions in pasta?

Absolutely! Caramelized onions are a flavor bomb in any pasta dish. They bring out a sweet, deep flavor that enhances creamy or savory sauces. In recipes like this creamy French onion pasta or even in mushroom-based pastas, caramelized onions add richness, depth, and an irresistible aroma.

What cheese is best for French onion pasta?

Gruyère is the traditional choice for French onion dishes thanks to its bold, nutty flavor and excellent meltability. Mozzarella adds creaminess and stretch, while Parmesan offers a salty bite. For extra richness, Fontina or even cream cheese can be added to the sauce for a velvety texture.

How do I keep one pot pasta creamy, not sticky?

To keep your one pot pasta creamy, stir frequently while it simmers and stop cooking as soon as the pasta is al dente. Use enough liquid (broth and/or cream), and add cheeses at the end off the heat. A splash of broth or milk can loosen the sauce if it thickens too much after sitting.

One Pot French Onion Pasta – Amazing 35-Min Comfort Favorite

Ingredients

Scale

2 large yellow onions, thinly sliced
3 tbsp unsalted butter
3 cloves garlic, minced
1 tsp dried thyme
1 tsp salt
1/2 tsp black pepper
8 oz pasta (rigatoni or penne)
2 1/2 cups beef broth
1/2 cup heavy cream
1 cup shredded Gruyère cheese
1/2 cup shredded mozzarella
Fresh thyme for garnish

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Instructions

Caramelize the onions in butter over medium-low heat for 30–35 minutes until golden and soft.
Add garlic, thyme, salt, and pepper; cook for 2 more minutes.
Pour in beef broth and add pasta. Bring to a boil, then reduce to simmer for 12–14 minutes, stirring often.
Once pasta is al dente and most liquid is absorbed, stir in cream and cheeses off heat until smooth and creamy.
Garnish with fresh thyme and serve hot.

Notes

For a baked version, transfer to an oven-safe skillet, top with cheese, and broil 2–3 minutes.
Store leftovers in the fridge up to 3 days. Reheat with a splash of broth or milk to revive creaminess.

Author: Paula
Prep Time: 10 minutes
Cook Time: 35 minutes
Category: Dinner
Method: One Pot
Cuisine: American
Diet: Vegetarian