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Caramelized Onion Pasta

Caramelized Onion Pasta pairs silky, slow-sweetened onions with sun-dried tomatoes and a touch of chili crunch for layered umami and gentle warmth. A splash of soy sauce deepens the savory notes, while butter and pasta water create a glossy coating. Ideal for a cozy dinner, it’s rich, aromatic, and balanced with fresh parsley and Parmesan.

  • Prep15 mins
  • Cook30 mins
  • Serves3
  • DifficultyEasy
Caramelized Onion Pasta
  1. 1

    Warm olive oil and 1 tablespoon butter in a large skillet over medium-low heat. Add the onions and stir to coat. Cook, stirring occasionally, until they begin to caramelize and turn golden brown, 20 to 25 minutes. To speed caramelization and keep them moist, add water 1 tablespoon at a time as the onion mixture cooks.

  2. 2

    Add the garlic and cook until fragrant, about 1 minute. Stir in the sun-dried tomatoes, soy sauce, chili onion crunch, and season with salt and pepper.

  3. 3

    Meanwhile, bring a large pot of lightly salted water to a boil. Cook the spaghetti in the boiling water, stirring occasionally, until tender yet firm to the bite, about 12 minutes. Drain, reserving 1/2 cup pasta water.

  4. 4

    Move the pasta to the skillet with the caramelized onions. Toss to coat well, then stir in the remaining tablespoon of butter. Add the reserved pasta water as needed, 1 tablespoon at a time.

  5. 5

    Top with chopped parsley and Parmesan cheese, and serve.