Il Cucinologo
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Spaghetti with Tomato and Caramelized Onions

17/11/2023

The combination of tomato and caramelized onions gives the spaghetti a sweet and rich flavor that pairs wonderfully with the simplicity of the pasta. Here is the Italian recipe for you:

Ingredients

  • 320 g spaghetti
  • 500 g ripe tomatoes or 1 can of peeled tomatoes
  • 2 large onions
  • 3 tablespoons brown sugar
  • 2 tablespoons balsamic vinegar
  • Salt to taste
  • Black pepper to taste
  • Extra virgin olive oil
  • Fresh basil (optional)
  • Grated Parmesan (optional)

Preparation

  1. Start by bringing a pot of salted water to a boil for the spaghetti.

  2. While the water is coming to a boil, prepare the onions. Peel the onions and slice them thinly.

  3. Heat a drizzle of extra virgin olive oil in a pan and add the onions. Let them soften over medium heat, stirring occasionally.

  4. When the onions start to color, add the brown sugar and balsamic vinegar. Lower the heat and let the onions caramelize gently until soft and golden brown. This process may take about 10-15 minutes.

  5. Meanwhile, if using fresh tomatoes, blanch them for a few minutes in boiling water, then peel, remove the seeds, and dice them. If using canned peeled tomatoes, simply crush them with a fork.

  6. Add the tomatoes to the caramelized onions and cook the sauce over low heat for about 10 minutes. Season with salt and pepper.

  7. Cook the spaghetti in boiling water according to the package instructions for al dente texture.

  8. Drain the spaghetti and toss it with the tomato and caramelized onion sauce directly in the pan over low heat.

  9. Serve immediately, garnished with fresh basil leaves and, if desired, a sprinkle of grated Parmesan.

Interesting Facts

Caramelized onions are a very versatile condiment and represent an interesting technique for adding a touch of sweetness to dishes. Caramelization occurs thanks to the slow cooking of the onions, which naturally release their sugars, enhanced by the brown sugar and balsamic vinegar. In Italy, attention to flavor balance is essential, which is why this dish is enjoyable for the contrast between the sweetness of the onions and the acidity of the tomatoes.