One-Pot French Onion Chicken (Printable)

Savory pasta with caramelized onions, tender chicken, and melty cheese cooked in one pot.

# What You Need:

→ Proteins

01 - 2 large boneless, skinless chicken breasts (about 1.1 lbs), cut into bite-sized pieces

→ Vegetables

02 - 3 large yellow onions, thinly sliced
03 - 3 cloves garlic, minced
04 - 2 tablespoons fresh thyme leaves or 1 teaspoon dried thyme

→ Pasta

05 - 12 oz short pasta such as penne, fusilli, or rigatoni

→ Broth & Liquids

06 - 3 tablespoons unsalted butter
07 - 2 tablespoons olive oil
08 - 4 cups low-sodium beef or chicken broth
09 - 1/2 cup dry white wine, optional or substitute with additional broth
10 - Salt and freshly ground black pepper to taste

→ Cheese

11 - 1 cup Gruyère cheese, shredded
12 - 1/2 cup mozzarella cheese, shredded
13 - 2 tablespoons grated Parmesan cheese

# How-To:

01 - Heat olive oil and 1 tablespoon butter in a large Dutch oven or deep skillet over medium heat. Add chicken pieces, season with salt and pepper, and cook until golden and cooked through, approximately 6 to 8 minutes. Remove chicken and set aside.
02 - In the same pot, add the remaining butter. Add sliced onions and a generous pinch of salt. Cook slowly over medium-low heat, stirring often, until onions are deeply caramelized and golden brown, approximately 20 to 25 minutes.
03 - Add garlic and thyme, then sauté for 1 minute until fragrant.
04 - Pour in the wine if using and scrape up any browned bits from the bottom of the pot. Let it reduce by half, approximately 2 to 3 minutes.
05 - Return the seared chicken to the pot. Add the uncooked pasta and broth. Bring to a boil, then reduce heat to a simmer. Cover and cook, stirring occasionally, until the pasta is al dente and most of the liquid has been absorbed, approximately 10 to 12 minutes.
06 - Stir in Gruyère and mozzarella cheese until melted and creamy. Season with additional salt and pepper if needed.
07 - Sprinkle with Parmesan cheese and, if desired, broil under the oven for 2 to 3 minutes until golden and bubbly. Serve hot, garnished with extra thyme.

# Expert Advice:

01 -
  • Everything cooks in one pot, so cleanup is barely worth mentioning and your evening stays peaceful.
  • The caramelized onions do the heavy lifting flavor-wise, making you look like a culinary genius with minimal stress.
  • Melted Gruyère and mozzarella create this silky, luxurious sauce that tastes indulgent without requiring fancy techniques.
02 -
  • Don't rush the onions—I once tried to hurry them over medium-high heat and ended up with burnt bits instead of caramel, which taught me that some things genuinely cannot be rushed.
  • Stir the pasta occasionally as it cooks so it doesn't stick to the bottom and burn, which can happen because there's less liquid than you'd use in traditional pasta cooking.
03 -
  • If your pasta is still firm when the liquid has mostly absorbed, add more broth a splash at a time rather than all at once, so you don't end up with a soup instead of a creamy, clingy sauce.
  • Use a Dutch oven or heavy-bottomed pot if you have one—it distributes heat evenly and prevents hot spots that can burn the pasta or the bottom layer of cheese.
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