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Caramelized Onion Chili Oil Pasta Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 5 reviews
  • Author: Amanda
  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Total Time: 35 minutes
  • Yield: 2 servings
  • Category: Main Course
  • Method: Stovetop
  • Cuisine: Italian-inspired
  • Diet: Vegetarian

Description

A flavorful Caramelized Onion Pasta with a spicy chili oil twist, creamy parmesan sauce, and aromatic seasonings. This easy-to-make dish combines slowly caramelized onions, pasta, and a touch of heat, perfect for a comforting and satisfying meal.


Ingredients

Units Scale

Pasta

  • 8 oz dry thin spaghetti

Sauce and Toppings

  • 1 large white onion thinly sliced
  • 1 tablespoon olive oil
  • 4 tablespoons butter divided
  • 4 cloves garlic pressed or minced
  • 1-2 tablespoon chili crisp plus more for serving (depending on your heat preference)
  • 2 tablespoons soy sauce
  • 2 tablespoons honey
  • 2/3 cup half and half (coconut milk can be used for dairy free)
  • 1 teaspoon paprika
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon Italian seasoning
  • 1/2 teaspoon black pepper
  • 1/2 cup freshly grated parmesan
  • fresh parsley for garnish

Instructions

  1. Caramelize Onions: In a large skillet over medium-low heat, add olive oil and 2 tablespoons butter. Add sliced onion and cook, stirring frequently, for about 20 minutes until soft and lightly caramelized.
  2. Cook Pasta: Meanwhile, bring a large pot of salted water to a boil. Cook spaghetti until al dente. Reserve 1/2 cup pasta water, then drain.
  3. Sauté Garlic: To the onions, add the remaining butter and minced garlic. Cook for 1 minute until fragrant.
  4. Add Flavorings: Stir in chili crisp, soy sauce, and honey until combined.
  5. Simmer Sauce: Reduce heat to low. Pour in half and half. Add paprika, garlic powder, Italian seasoning, and black pepper. Simmer for 5 minutes until slightly thickened.
  6. Melt Cheese: Stir in parmesan until melted and smooth.
  7. Combine Pasta and Sauce: Add cooked pasta to the skillet and toss until fully coated. Add reserved pasta water only if needed to loosen the sauce.
  8. Garnish and Serve: Garnish with chili crisp oil and fresh parsley before serving.

Notes

  • Cook onions slowly over medium-low heat to avoid burning and ensure proper caramelization.
  • Use freshly grated parmesan for the best texture and melting quality.
  • Add reserved pasta water gradually to adjust the sauce consistency to your preference.
  • Coconut milk can be substituted for half and half to make the dish dairy free.
  • Adjust chili crisp amount according to your heat tolerance for a spicier or milder dish.

Nutrition

  • Serving Size: 1 serving
  • Calories: 550 kcal
  • Sugar: 12 g
  • Sodium: 700 mg
  • Fat: 25 g
  • Saturated Fat: 14 g
  • Unsaturated Fat: 9 g
  • Trans Fat: 0 g
  • Carbohydrates: 65 g
  • Fiber: 4 g
  • Protein: 18 g
  • Cholesterol: 60 mg