Caramelized Onion Pasta with Chili Oil Recipe

Introduction

This Caramelized Onion Pasta with Chili Oil is a simple yet flavorful dish that combines sweet, deeply caramelized onions with a spicy kick from chili oil. It’s perfect for a quick weeknight meal that feels both comforting and exciting.

Caramelized Onion Pasta with Chili Oil Recipe - Recipe Image

Ingredients

  • 200g pasta (your choice)
  • 2 large onions, thinly sliced
  • 2 tablespoons chili oil
  • Freshly grated Parmesan cheese, to taste
  • Salt, to taste
  • Olive oil, for cooking onions

Instructions

  1. Step 1: Heat a drizzle of olive oil in a large pan over medium-low heat. Add the sliced onions and cook slowly, stirring occasionally, until they become soft, golden, and caramelized, about 25-30 minutes. Season with a pinch of salt.
  2. Step 2: Meanwhile, cook the pasta in boiling salted water according to the package instructions until al dente. Drain, reserving a little pasta water.
  3. Step 3: Toss the cooked pasta with the caramelized onions and chili oil. Add a splash of reserved pasta water if needed to loosen the sauce.
  4. Step 4: Serve hot, topped generously with freshly grated Parmesan cheese.

Tips & Variations

  • For a smoky flavor, use smoked chili oil or add a pinch of smoked paprika.
  • Try adding fresh herbs like thyme or parsley for extra freshness.
  • If you prefer less heat, start with half the chili oil and add more to taste.

Storage

Store leftover pasta in an airtight container in the refrigerator for up to 2 days. Reheat gently in a pan over low heat, adding a splash of water to loosen the sauce and prevent sticking.

How to Serve

Serve this delicious recipe with your favorite sides.

FAQs

Can I use a different type of pasta?

Yes, this dish works well with any pasta shape you prefer, such as spaghetti, penne, or fusilli.

How do I know when the onions are caramelized enough?

The onions should be soft, deep golden brown, and sweet in aroma. Cook them slowly over low heat to develop the best flavor without burning.

Print

Caramelized Onion Pasta with Chili Oil Recipe

This Caramelized Onion Pasta with Chili Oil is a simple yet flavorful dish that combines the sweet richness of slow-cooked onions with the spicy heat of chili oil, all tossed with perfectly cooked pasta and finished with a sprinkle of Parmesan cheese. Perfect for a quick weeknight dinner that feels indulgent and comforting.

  • Author: Stella
  • Prep Time: 10 minutes
  • Cook Time: 40 minutes
  • Total Time: 50 minutes
  • Yield: 4 servings 1x
  • Category: Main Course
  • Method: Stovetop
  • Cuisine: Italian

Ingredients

Scale

Pasta

  • 8 oz (225g) dried pasta (such as spaghetti or linguine)

Onions

  • 3 large onions, thinly sliced
  • 2 tbsp olive oil or butter
  • 1/2 tsp salt
  • 1 tsp sugar (optional, to enhance caramelization)

Chili Oil

  • 3 tbsp chili oil

Cheese

  • 1/4 cup grated Parmesan cheese

Instructions

  1. Prepare and cook the onions: Heat olive oil or butter in a large skillet over medium-low heat. Add the thinly sliced onions, salt, and sugar if using. Cook slowly, stirring occasionally, for about 30-40 minutes until the onions are deeply golden and caramelized. Be careful not to burn them; adjust heat as necessary.
  2. Cook the pasta: While the onions are caramelizing, bring a large pot of salted water to a boil. Add the pasta and cook according to package instructions until al dente. Drain the pasta, reserving about 1/2 cup of pasta water.
  3. Toss pasta with onions and chili oil: Add the cooked pasta to the skillet with caramelized onions. Pour in the chili oil and toss everything together, adding reserved pasta water a little at a time if needed to help coat the pasta evenly.
  4. Finish with Parmesan: Remove from heat and sprinkle the grated Parmesan cheese over the pasta. Toss briefly to combine and serve immediately.

Notes

  • Use a heavy-bottomed pan for more even onion caramelization.
  • Adjust the amount of chili oil to taste depending on your spice preference.
  • For a vegan option, omit Parmesan or use a vegan cheese alternative.
  • Reserve pasta water to help create a silky sauce with the onions and oil.

Keywords: Caramelized onion pasta, chili oil pasta, easy pasta recipe, spicy pasta, Italian pasta dish

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