French Onion Rigatoni with Blistered Gruyere Crust Tips, FAQ & printable recipe

Tips for success

For the best caramelization, use a wide skillet so the onions have room to spread out. If the skillet is too crowded, the onions will steam rather than brown.

Stir only occasionally — letting them sit allows the sugars to develop and brown. If the onions start to stick, add a splash of water or broth to deglaze the pan, scraping up the browned bits.

When broiling, position the skillet about 6 inches from the heat source and watch it constantly. Rotate the skillet halfway through for even browning.

If the cheese is browning too quickly but the center is still not bubbly, move the skillet to a lower rack or reduce the broiler temperature. Let the dish rest for a few minutes before serving — this allows the cheese to set slightly and makes serving easier.

Variations

• Add Mushrooms: Sauté 8 oz sliced cremini mushrooms with the onions until golden and tender. The earthy flavor pairs beautifully with the caramelized onions and Gruyere.
• Make It Spicy: Add a pinch of red pepper flakes along with the thyme, or finish with a drizzle of hot honey for a sweet-heat contrast.
• Swap the Cheese: Use Comté or a mix of Gruyere and Emmental for a different nutty flavor. Smoked Gouda also works well, adding a subtle smokiness.
• Add Protein: Fold in shredded rotisserie chicken or crispy pancetta after adding the cream. Both add a savory depth that complements the onions.

Storage and make-ahead

Fridge

Store in an airtight container in the refrigerator for up to 3 days. Reheat gently with a splash of cream or milk to restore the sauce.

Freezer

Freeze the unbaked pasta (without broiling) in a freezer-safe dish for up to 2 months. Thaw overnight in the refrigerator, then broil as directed.

Reheat

Reheat leftover pasta in a skillet over medium heat with a splash of cream or milk, stirring until hot.

Store leftovers in an airtight container in the refrigerator for up to 3 days. The pasta will absorb some sauce as it sits, so you may want to add a splash of cream or milk when reheating to restore its creamy texture.

The onions can be caramelized up to 2 days in advance and stored in the refrigerator. To finish, reheat the onions in the skillet, then proceed with the recipe.

The entire dish can also be assembled (without broiling) and refrigerated for up to 24 hours. When ready to serve, bring to room temperature for 30 minutes, then broil as directed.

Serving ideas

Serve the French Onion Rigatoni hot, straight from the skillet, with extra cracked black pepper and fresh thyme leaves on top. The crispy cheese crust should be broken with a spoon to reveal the creamy pasta underneath.

This dish is hearty enough to stand alone as a main course, but it also pairs well with a simple green salad dressed with vinaigrette to cut through the richness.

For a more substantial meal, serve alongside roasted chicken or a seared steak. The creamy pasta also works as a side dish for grilled meats or as the centerpiece of a vegetarian dinner. Leftovers can be reheated in a skillet over medium heat with a splash of cream, or in the microwave, though the crust will lose its crispness.

Frequently asked questions

Recipe card

French Onion Rigatoni with Blistered Gruyere Crust

Prep 20 minCook 45 minTotal 1 h 5 minServes 6

Ingredients

• 3 large Golden Vidalia onions, sliced into thin crescents
• 2 tbsp fresh thyme leaves, plus more for garnish
• 4 tbsp unsalted butter
• 1 cup heavy cream
• 12 oz rigatoni pasta
• 8 oz aged Gruyere cheese, grated
• 4 oz provolone cheese, grated
• cracked black pepper, for serving

Instructions

1. Slice the Golden Vidalia onions into thin, uniform crescents. Strip the fresh thyme leaves from the stems, discarding the woody parts. Grate the aged Gruyere and provolone on the large holes of a box grater into separate piles. Bring a large pot of salted water to a boil.
2. Add the rigatoni to the boiling salted water and cook until al dente according to the package directions, about 10 to 12 minutes. Reserve about 1/2 cup of the pasta water before draining. Drain the rigatoni in a colander and set aside.
3. In a 12-inch cast iron skillet, melt the butter over medium heat. Add the sliced onions and cook, stirring occasionally, until they are deeply browned and caramelized, about 20 to 25 minutes. The onions should be soft, jammy, and mahogany-colored.
4. Stir the fresh thyme leaves into the caramelized onions and cook for 1 minute until fragrant. Pour in the heavy cream and bring to a gentle simmer. Let the sauce bubble for 2 to 3 minutes, until it thickens slightly and coats the back of a spoon.
5. Add the drained rigatoni to the skillet and toss gently with tongs until every piece is coated in the creamy onion sauce. If the sauce seems too thick, add a splash of the reserved pasta water to loosen it. Season with a pinch of salt if needed.
6. Sprinkle the grated provolone evenly over the pasta, then cover with the grated Gruyere, making sure the surface is completely blanketed. Press the cheese lightly into the pasta so it adheres.
7. Place the skillet under a preheated broiler, about 6 inches from the heat. Broil for 2 to 4 minutes, until the cheese is melted, golden, and blistered in spots. Watch closely to prevent burning.
8. Remove the skillet from the broiler and let it rest for 2 to 3 minutes. Scatter fresh thyme leaves over the top and finish with cracked black pepper. Pull a portion with a spoon, letting the cheese stretch, and serve hot.

Contains: gluten, milk

Estimated nutrition per serving

Calories

580

Protein

22 g

Carbohydrates

45 g

Fat

34 g

Automatic estimate from the ingredient list, not laboratory-verified.