Rich, savory, and bursting with bold flavors, this Caramelized Onion Pasta with Chili Oil is a simple yet unforgettable dish. The sweetness of caramelized onions perfectly balances the creamy, slightly spicy sauce, creating a pasta that’s comforting and full of character. Ready in just 15 minutes with only a handful of ingredients, it’s perfect for busy weeknights or an elegant last-minute dinner.

Ingredients

• 12 oz spaghetti or your favorite pasta
• 1 large onion, thinly sliced
• 2 Tablespoons olive oil
• 2 Tablespoons chili oil (adjust to taste)
• 2 garlic cloves, minced
• 1/2 cup heavy cream
• 1 teaspoon Italian seasoning
• Salt, to taste
• Grated Parmesan (optional)

Procedure

1. Cook the Pasta: Bring a large pot of salted water to a boil. Cook the spaghetti according to package instructions until al dente. Reserve 1/2 cup of pasta water before draining.
2. Caramelize the Onions: While the pasta cooks, heat olive oil in a large skillet over medium heat.
3. Add the sliced onions and cook, stirring occasionally, until golden brown and caramelized (about 8–10 minutes).
4. Build the Sauce: Add the garlic to the caramelized onions and sauté for 1 minute until fragrant.
5. Stir in the chili oil and cook for another 30 seconds.
6. Reduce the heat to low and mix in the heavy cream, Italian seasoning, and a pinch of salt.
7. Combine: Add the cooked pasta to the skillet and toss to coat in the sauce. If the sauce is too thick, add a splash of the reserved pasta water to achieve your desired consistency.
8. Taste and adjust seasoning as needed.
9. Serve: Plate the pasta and, if desired, top with grated Parmesan for an extra layer of flavor.