Easy French Onion Pasta

Category: Satisfying Main Dishes for Every Occasion

Enjoy a flavorful French-inspired pasta featuring deeply caramelized onions cooked slowly in butter and olive oil. After developing rich color, aromatic garlic and savory seasonings add depth before simmering with broth, herbs, and short-cut pasta. Once the noodles are tender, a blend of freshly shredded Gruyere and Parmesan creates a creamy, decadent sauce that clings to each piece. Finish with a sprinkle of fresh parsley for a touch of color and brightness. This comforting dish combines the classic flavors of French onion soup with the heartiness of cheesy pasta, perfect for sharing around the table with family or friends.

Barbara Chef
Updated on Wed, 04 Jun 2025 01:32:30 GMT
Eine Schüssel mit Pasta, die mit Parmesan und Zwiebeln garniert ist. Pin
Eine Schüssel mit Pasta, die mit Parmesan und Zwiebeln garniert ist. | cookwithcarla.com

This decadent French Onion Pasta is the weeknight answer to craving those classic soup flavors without the oven or endless stirring. Sweet caramelized onions, savory broth, and a duo of cheeses make each bite rich and comforting yet surprisingly simple to pull together for family dinner.

Caramelizing onions can feel like a chore but once you’ve tried it in this pasta you will happily make it again and again My kitchen fills with that sweet onion aroma and my family always comes running

Ingredients

  • Olive oil and unsalted butter: These two add flavor and help the onions cook down into a rich base Choose a fruity extra virgin olive oil and fresh butter for best results
  • Large yellow onions: Slicing them thin with a mandoline gives you deep, sweet flavor throughout Use fresh firm onions for natural sweetness
  • Salt and pepper: A pinch is just enough to balance the flavors Select a quality sea salt and fresh cracked pepper
  • Garlic cloves: Fresh and minced for that punch of savory aroma
  • Red pepper flakes: These add gentle warmth Use more or less based on your spice preference
  • Worcestershire sauce: Adds classic umami and a hint of tang Choose a brand with fewer additives if possible
  • Reduced sodium soy sauce: Layers in more savory notes and keeps the dish balanced
  • Water or beef broth: The liquid for simmering pasta Use beef broth for extra robust flavor
  • Evaporated milk: The key to silkiness and body in the sauce Choose full fat for best mouthfeel
  • Cornstarch: Thickens and helps the sauce cling to pasta Ensure it is lump free when you add it
  • Beef bouillon: Use granulated or base for depth or substitute beef broth if you prefer less salt
  • Fresh parsley and thyme or dried herbs: Both brighten and add depth to the dish Always use fresh herbs when available for the best taste
  • Dried oregano paprika pepper: A trio that complements the savory flavors and adds gentle color
  • Short cut pasta: Orecchiette is especially nice for catching onions and sauce but any shape will work
  • Gruyere cheese and Parmesan cheese: Freshly shredded for best melt and salty creamy layers Choose true Gruyere if possible for authenticity
  • Fresh parsley: Optional but beautiful for finishing and freshness

Step-by-Step Instructions

Caramelize the Onions:
Add onions Melt unsalted butter in olive oil in a large Dutch oven over medium heat Add the thinly sliced onions with a pinch of salt and pepper
Caramelize:
Cook the onions gently for 30 to 35 minutes stirring every few minutes They should become deep golden and very soft Lower the heat or add more oil or butter if the onions brown too fast making sure not to rush this foundational step
Make the Sauce:
Saute aromatics Once onions are deeply caramelized stir in garlic red pepper flakes Worcestershire sauce and soy sauce Cook for about 30 seconds until aromatic and mixed in
Add liquids and seasonings:
Pour in water and half the evaporated milk Separately whisk the cornstarch into the remaining evaporated milk and add it to the pot Bring everything up to a boil over high heat then stir in bouillon parsley thyme oregano paprika and more pepper
Boil Pasta:
Add pasta When the mixture is boiling add the dry short cut pasta Give it a stir and reduce to a simmer over medium high Cook uncovered about 20 to 25 minutes stirring frequently so nothing burns and making sure pasta stays mostly submerged Add more water if the liquid reduces too much
Finish with Cheese:
Add cheeses Remove the pot from the heat and scatter in Gruyere cheese a handful at a time stirring as it melts Add Parmesan and let it melt in Taste the sauce and add more salt and pepper if needed If you want the sauce looser add a splash more water or milk Garnish with fresh parsley right before serving
Eine Schüssel mit Penne-Nudeln, die mit Zwiebeln und Knoblauch garniert sind. Pin
Eine Schüssel mit Penne-Nudeln, die mit Zwiebeln und Knoblauch garniert sind. | cookwithcarla.com

Caramelizing onions is my favorite part of this dish There is something meditative about watching them transform and my son now insists on helping me stir so it has become a ritual we both look forward to

Storage Tips

Let leftovers cool before transferring to airtight containers Store in the fridge for up to four days Reheat gently on the stove or in the microwave adding a splash of milk or water if the pasta looks dry Freezes well for up to two months but the sauce texture will be softest when enjoyed fresh

Ingredient Substitutions

Swap Gruyere for Swiss or even mozzarella if that is what you have Extra sharp cheddar will work in a pinch For a vegetarian version use vegetable broth and skip the Worcestershire If you are out of evaporated milk try half and half or whole milk with an extra spoonful of cornstarch

Serving Suggestions

Serve with crusty bread for dunking or a bright green salad to balance the richness A sprinkle of extra Parmesan or a twist of fresh cracked pepper at the table is always welcome I love pairing with crisp white wine for company

Eine Schüssel mit Pasta, die mit Parmesan und Zwiebeln garniert ist. Pin
Eine Schüssel mit Pasta, die mit Parmesan und Zwiebeln garniert ist. | cookwithcarla.com

Cultural Context

French onion soup is famous for its slow cooked onions and cheese topped bread In this recipe those elements are transformed into a weeknight friendly one pot pasta It is a playful twist that honors tradition while simplifying it Just the thing for bringing a bit of French bistro comfort home

Recipe Questions & Answers

→ How do I ensure my onions caramelize properly?

Cook the onions low and slow in olive oil and butter, stirring occasionally. Patience is key—30-35 minutes yields deep golden color and sweet flavor without burning.

→ Can I substitute a different cheese for Gruyere?

Yes, Swiss, fontina, or Emmental all melt nicely and offer a similar nutty richness. Parmesan is also used for extra depth and saltiness.

→ Is it possible to make this pasta vegetarian?

Absolutely. Replace beef broth and bouillon with vegetable broth, and ensure Worcestershire or other sauces are vegetarian-friendly.

→ What kind of pasta works best?

Short-cut shapes like orecchiette, penne, or rigatoni capture the sauce well, but any sturdy shape that holds up to simmering will do.

→ How do I adjust sauce consistency?

If the sauce seems too thick, add a splash more milk or water after cheese is stirred in. If too thin, simmer uncovered a few extra minutes to reduce.

→ Can leftovers be reheated?

Yes, reheat gently on the stovetop with a splash of water or milk to restore creaminess and prevent sticking.

Easy French Onion Pasta

Pasta in a creamy onion sauce with caramelized onions, Gruyere, and fresh herbs. Perfect for comforting meals.

Preparation Time
15 mins
Cook Time
55 mins
Total Time
70 mins

Category: Main Dishes

Difficulty Level: Easy

Cuisine Type: French-inspired

Yield: 6 Servings (Serves six portions)

Dietary Preferences: ~

What You'll Need

→ For the onions

01 3 tablespoons olive oil
02 2 tablespoons unsalted butter
03 3 large yellow onions, sliced into 3 mm rings
04 1/8 teaspoon salt
05 1/8 teaspoon black pepper

→ For the sauce

06 4 garlic cloves, minced
07 pinch to 1/4 teaspoon red pepper flakes
08 1 tablespoon Worcestershire sauce
09 1 tablespoon reduced sodium soy sauce
10 1375 ml water (or beef broth as substitute)
11 354 ml evaporated milk
12 1/2 tablespoon cornstarch
13 2 tablespoons beef bouillon granules or base (omit if using beef broth)
14 1 tablespoon fresh parsley, minced (or 1 teaspoon dried)
15 2 teaspoons fresh thyme, minced (or 3/4 teaspoon dried)
16 1/2 teaspoon dried oregano
17 1/2 teaspoon paprika
18 1/2 teaspoon black pepper

→ To finish

19 454 g short-cut pasta (such as orecchiette), uncooked
20 140 g Gruyère cheese, freshly shredded
21 25 g Parmesan cheese, freshly shredded
22 fresh parsley, minced, for garnish (optional)

Steps to Follow

Step 01

Melt the butter in olive oil in a large Dutch oven over medium heat. Add onion slices, salt, and black pepper. Cook, stirring occasionally, until the onions are deeply caramelized and dark golden brown, about 30–35 minutes. Reduce heat or add more butter/oil if onions begin to toast too quickly.

Step 02

Stir in the minced garlic, red pepper flakes, Worcestershire sauce, and soy sauce. Cook, stirring, for about 30 seconds until fragrant.

Step 03

Add water and half the evaporated milk to the pot. In a separate bowl, whisk cornstarch with remaining evaporated milk. Pour the slurry into the pot. Increase the heat and bring to a boil while stirring in beef bouillon, parsley, thyme, oregano, paprika, and black pepper.

Step 04

Once the mixture is boiling, add uncooked pasta. Reduce heat to medium-high and simmer uncovered, stirring often and ensuring pasta remains submerged, for 20–25 minutes or until al dente. Monitor and add extra water if needed to guarantee even cooking. There should be some excess liquid at the end for the sauce.

Step 05

Take the pan off the heat. Stir in the Gruyère cheese by the handful, allowing each addition to melt fully before adding more. Follow with the Parmesan cheese and blend until melted. Adjust seasoning with salt and pepper as desired. For a creamier consistency, incorporate more water or milk. Garnish with fresh parsley if desired and serve immediately.

Additional Notes

  1. Achieving deep golden caramelization of onions is essential for balanced sweetness. Add butter or oil as needed to prevent scorching.
  2. Simmer time may vary based on pasta thickness; adjust liquid levels as needed to maintain a saucy consistency.

Tools You'll Need

  • Large Dutch oven (minimum 6.5 liters)
  • Mandoline slicer
  • Wooden spoon
  • Measuring spoons and cups
  • Mixing bowl
  • Cheese grater

Allergy Information

Check every ingredient for potential allergens. Consult a healthcare professional for concerns.
  • Contains dairy (milk, Gruyère, Parmesan cheese)
  • Contains wheat (pasta)
  • Contains soy (soy sauce)

Nutrition Info (Per Serving)

These details are for informational purposes and don’t replace medical advice.
  • Calories: 567
  • Fats: 19 g
  • Carbohydrates: 72 g
  • Proteins: 22 g