Creamy, comforting pasta with rich caramelized onions and a silky sauce. Perfect for a quick weeknight dinner or a cozy meal at home. This easy one-pan dish can be made vegan or with regular dairy, offering a flexible option for all eaters. The sweetness of slow-cooked onions pairs beautifully with the creamy sauce, making it a truly indulgent pasta experience.
Caramelize the onions:Heat the olive oil in a large pan over medium-low heat. Add the sliced onions and a pinch of salt. Cook, stirring occasionally, for 30–40 minutes until deeply golden and caramelized.
Prepare the sauce:Transfer the caramelized onions to a large mixing bowl. Add the cream cheese, Parmesan, a generous amount of black pepper, and pasta water. Stir until well combined and creamy.
Combine with pasta:Return the mixture to the pan over low heat. Add the cooked pasta and toss until everything is well coated and heated through.
Serve:Plate the pasta, then garnish with chopped parsley and a drizzle of chili oil.