This Creamy Caramelized Onion Pasta combines sweet caramelized onions with a creamy Parmesan sauce and a touch of chili oil. It’s easy to make, customizable for vegans, and perfect for a comforting dinner.
Heat olive oil and optional butter in a skillet over medium heat.
Add the onions and sprinkle with salt and pepper. Cook until softened, about 5 minutes.
Stir in the garlic and optional sugar. Add 1 cup of water and cook for 25–30 minutes, stirring occasionally, until the onions are golden and caramelized. Deglaze with water if needed.
Cook the Pasta
While the onions cook, boil a large pot of salted water.
Cook the pasta until al dente according to the package instructions. Reserve 1 cup of pasta water, then drain.
Make the Sauce
Add smoked paprika, onion powder, garlic powder, oregano, sweet paprika, and chili oil to the caramelized onions.
Stir in the Parmesan cheese and cream, and simmer for 5–7 minutes until the sauce thickens. Adjust the consistency with pasta water if needed.
Combine Pasta and Sauce
Add the cooked pasta to the skillet, tossing to coat the noodles evenly. Adjust seasoning as desired.
Garnish and Serve
Garnish with fresh parsley and additional Parmesan cheese if desired. Serve hot.