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Caramelized Onion Pasta with Crunchy Chili Onion

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Caramelized Onion Pasta with Crunchy Chili Onion is a rich and flavorful pasta dish featuring sweet slow-cooked onions, Parmesan cheese, and a spicy crunchy chili onion topping. This elegant yet simple meal delivers the perfect balance of sweet, savory, and spicy flavors.

Ingredients

  • 12 ounces spaghetti, linguine, or fettuccine
  • 1 tablespoon salt (for pasta water)
  • 3 large yellow onions, thinly sliced
  • 3 tablespoons olive oil
  • 1 tablespoon butter
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 2 cloves garlic, minced
  • 1/2 cup reserved pasta water
  • 1/2 cup grated Parmesan cheese
  • 1 tablespoon balsamic vinegar
  • 1 teaspoon fresh thyme leaves
  • 2 to 3 tablespoons crunchy chili onion oil
  • Additional Parmesan cheese, for serving
  • Fresh parsley, chopped, for serving

Instructions

  1. Bring a large pot of salted water to a boil and cook the pasta according to package directions until al dente.
  2. Reserve 1/2 cup of pasta water before draining the pasta.
  3. While the pasta cooks, heat the olive oil and butter in a large skillet over medium heat.
  4. Add the sliced onions, salt, and black pepper.
  5. Cook the onions slowly for 25 to 30 minutes, stirring occasionally, until deeply golden and caramelized.
  6. Add the garlic and cook for 30 seconds until fragrant.
  7. Stir in the balsamic vinegar and thyme.
  8. Add the drained pasta to the skillet with the onions.
  9. Pour in the reserved pasta water and toss to combine.
  10. Add the Parmesan cheese and continue tossing until a light sauce forms.
  11. Divide the pasta among serving bowls.
  12. Top with crunchy chili onion oil, additional Parmesan cheese, and fresh parsley.
  13. Serve immediately.

Notes

  • Take your time caramelizing the onions for the best flavor and sweetness.
  • Caramelized onions can be prepared up to 3 days in advance.
  • Add mushrooms, white beans, tofu, chicken, or shrimp for extra substance.
  • For a creamier version, stir in 1/2 cup heavy cream before serving.
  • Use vegan butter and plant-based Parmesan for a vegan-friendly variation.
  • Add the crunchy chili onion topping after reheating leftovers to maintain its texture.

Nutrition

Find it online: https://thefamilycooking.com/caramelized-onion-pasta-with-crunchy-chili-onion/