Description
Make this rich and savory pasta featuring deeply caramelized onions balanced with a touch of heat from chili oil.
Ingredients
Scale
- 1 pound spaghetti or linguine
- 3 large yellow onions, thinly sliced
- 4 tablespoons unsalted butter
- 2 tablespoons olive oil
- 1 teaspoon salt, plus more for water
- 1/2 teaspoon black pepper
- 2 cloves garlic, minced
- 1/4 cup dry white wine or vegetable broth
- 1 cup heavy cream
- 1/2 cup grated Parmesan cheese
- 2 tablespoons chili oil or chili crisp
- 1 tablespoon fresh parsley, chopped (for garnish)
Instructions
- Heat butter and olive oil in a large skillet over medium heat. Add the sliced onions, 1 teaspoon salt, and pepper. Cook slowly, stirring occasionally, for 25 to 35 minutes until the onions are deep brown and sweet. This slow cooking develops the flavor.
- While onions cook, bring a large pot of salted water to a boil. Cook the pasta according to package directions until al dente. Reserve 1 cup of the starchy pasta water before draining.
- Once onions are caramelized, reduce heat to low. Add the minced garlic and cook for 1 minute until fragrant.
- Pour in the white wine or broth, scraping up any browned bits from the bottom of the skillet. Let it reduce for 2 minutes.
- Stir in the heavy cream and bring to a gentle simmer. Cook for 3 minutes until the sauce thickens slightly.
- Remove the skillet from the heat. Stir in the Parmesan cheese until smooth. If the sauce is too thick, add a splash of the reserved pasta water.
- Add the drained pasta to the skillet. Toss everything together until the pasta is evenly coated.
- Divide the pasta among bowls. Drizzle each serving with chili oil or chili crisp and garnish with fresh parsley.
Notes
- For faster caramelization, add a pinch of sugar to the onions at the beginning, but this is optional.
- If you prefer a milder heat, stir the chili oil into the sauce before serving instead of drizzling it on top.
- Use high-quality Parmesan cheese for the best flavor in the sauce.
- Prep Time: 10 min
- Cook Time: 40 min
- Category: Dinner
- Method: Stovetop
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 750
- Sugar: 12
- Sodium: 450
- Fat: 38
- Saturated Fat: 20
- Unsaturated Fat: 15
- Trans Fat: 1
- Carbohydrates: 80
- Fiber: 4
- Protein: 25
- Cholesterol: 95