Print

Caramelized Onion Pasta

Print Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

Caramelized onion pasta is a rich, flavorful dish where golden, slow-cooked onions take center stage. Combined with al dente pasta and Parmesan, it’s an elegant yet simple meal that’s perfect for any occasion.

Ingredients

Units Scale
  • 3–4 large yellow or sweet onions, thinly sliced
  • 2–3 tablespoons olive oil or butter
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 2 cloves garlic, minced (optional)
  • 1 tablespoon balsamic vinegar or white wine (optional)
  • 12 ounces pasta (fettuccine, linguine, or spaghetti)
  • 1/2 cup reserved pasta water
  • 1/2 cup grated Parmesan cheese
  • Fresh parsley or thyme for garnish (optional)

Instructions

  1. Heat olive oil or butter in a large skillet over medium-low heat.
  2. Add sliced onions and a pinch of salt. Cook, stirring occasionally, for 30–40 minutes until deeply golden and caramelized.
  3. Optional: Stir in minced garlic during the last 5 minutes. Deglaze the pan with vinegar or wine, scraping up browned bits.
  4. Meanwhile, cook pasta in salted boiling water until al dente. Reserve 1/2 cup of pasta water and drain the rest.
  5. Add the drained pasta to the skillet with the onions. Stir in reserved pasta water and Parmesan cheese.
  6. Season with additional salt and pepper to taste. Toss until everything is well coated.
  7. Serve immediately, garnished with herbs and more Parmesan if desired.

Notes

  • Use sweet onions like Vidalia for enhanced caramel flavor.
  • Low and slow cooking is key—don’t rush the caramelization.
  • Deglazing adds acidity and depth—don’t skip it for best flavor.
  • Add a splash of cream for a richer version.
  • Make onions ahead and store refrigerated up to 5 days.

Nutrition

Find it online: https://tastyera.com/caramelized-onion-pasta/