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Caramelized Onion Pasta with Chili Oil

A delightful balance of sweet caramelized onions and spicy chili oil, this creamy pasta dish is quick to prepare and indulgent enough for special occasions.
Servings 4 servings
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes

Ingredients

Pasta and Sauce Base

  • 8 oz dry thin spaghetti Can use whole grain or gluten-free spaghetti if desired.
  • 1 large white onion, thinly sliced Sweet onions work best for caramelization.
  • 1 tablespoon olive oil
  • 4 tablespoons butter (divided)
  • 4 cloves garlic, pressed or minced

Seasonings and Condiments

  • 1-2 tablespoons chili crisp Adjust to taste for heat preference.
  • 2 tablespoons soy sauce
  • 2 tablespoons honey

Creamy Mixture

  • ½ cup half and half Coconut milk can be used for dairy-free.
  • 1 teaspoon paprika
  • ½ teaspoon garlic powder
  • ½ teaspoon Italian seasoning
  • ½ teaspoon black pepper
  • ½ cup freshly grated parmesan

Garnish

  • Fresh parsley For garnish.
  • Additional chili crisp For serving.

Instructions

Preparation

  • In a large skillet over medium-low heat, add olive oil and 2 tablespoons of butter.
  • Add the sliced onion and cook, stirring frequently, for about 20 minutes until soft and lightly caramelized.
  • Meanwhile, bring a large pot of salted water to a boil. Cook spaghetti until al dente. Reserve ½ cup pasta water, then drain the spaghetti.

Cooking

  • To the skillet with onions, add the remaining 2 tablespoons of butter and the minced garlic. Cook for 1 minute until fragrant.
  • Stir in the chili crisp, soy sauce, and honey until combined.
  • Reduce the heat to low and pour in the half and half. Add paprika, garlic powder, Italian seasoning, and black pepper. Simmer for 5 minutes until slightly thickened.
  • Stir in the parmesan until melted and smooth.
  • Add the cooked pasta to the skillet and toss until fully coated. Add reserved pasta water only if needed to loosen the sauce.

Serving

  • Garnish with extra chili crisp oil and fresh parsley before serving.

Notes

For leftovers, store in an airtight container in the refrigerator for up to 3-4 days. Reheat on the stovetop adding a splash of water or half and half to revive the creamy sauce.
Calories: 500kcal
Course: Dinner, Main Course
Cuisine: Italian
Keyword: Caramelized Onion Pasta, Chili Oil Pasta, Creamy Pasta, Quick Dinner, Vegetarian Pasta