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Roasted Parmesan Creamed Onions

Roasted Parmesan Creamed Onions

Warning: Insanely Delicious! Roasted Parmesan Creamed Onions

This recipe is a serious case of "can't-stop-won't-stop" deliciousness. The Parmesan Creamed Onions are so incredibly flavorful and addictive, you might just find yourself making them three nights in a row (like we did!).

Why You'll Love This Recipe:

  • Flavor Explosion: The combination of caramelized onions bathed in a creamy Parmesan sauce is pure comfort food magic. It's a simple dish with an elegant and sophisticated taste.
  • Easy Does It: This recipe requires minimal prep work and utilizes a straightforward baking process, making it ideal for busy weeknights or effortless entertaining.
  • Showstopper Side Dish: These Parmesan Creamed Onions are the perfect accompaniment to any main course, adding a touch of luxury and flavor to your meal.
  • Vegetarian Delight: This recipe is naturally vegetarian, making it a great option for everyone to enjoy.


  • For the Sweet and Savory Onions:

    • 4 large sweet onions, peeled and sliced ½ inch thick
    • 3 tablespoons extra virgin olive oil
    • Salt and pepper to taste
  • For the Creamy Parmesan Sauce:

    • 1 cup heavy cream
    • ¼ cup white wine (optional, can be substituted with chicken broth)
    • ¼ cup grated Parmesan cheese


  1. Preheat and Prep: Get your oven started by preheating it to 375 degrees Fahrenheit (190 degrees Celsius). Line a baking sheet with parchment paper for easy cleanup.

  2. Perfect Onion Slices: Peel and slice your sweet onions into ½-inch thick slices. Aim to keep the onion rings intact for a beautiful presentation.

  3. Roasting for Sweetness: Arrange the onion slices in a single layer on your prepared baking sheet. Drizzle them with olive oil and season generously with salt and pepper.

  4. Creamy Sauce Creation: While the onions roast, in a saucepan on the stovetop, combine the heavy cream and white wine (or chicken broth). Heat the mixture over medium heat until it begins to simmer around the edges. Once simmering, remove the pan from the heat and set it aside.

  5. Baking the Beauty: Roast the onions in the preheated oven for 15 minutes.

  6. Building the Flavor: After 15 minutes, carefully remove the baking sheet with the roasted onions from the oven. Transfer the onions to a shallow baking dish, again keeping the onion rings intact as much as possible.

  7. Pouring the Goodness: Slowly pour the creamy Parmesan sauce over the roasted onions, ensuring they are evenly coated. Sprinkle the top with grated Parmesan cheese.

  8. The Cheesy Finish: Cover the baking dish tightly with aluminum foil. Return it to the oven and bake for an additional 20 minutes.

  9. Golden Perfection: After 20 minutes, carefully remove the foil and continue baking for an additional 5 minutes, or until the cheese is melted and bubbly, and the onions are caramelized and golden brown around the edges.

  10. Serving and Enjoying: Remove the Parmesan Creamed Onions from the oven and let them cool slightly before serving. Spoon them onto plates and savor the deliciousness!


  • For a richer flavor, substitute full-fat coconut milk for the heavy cream.
  • Add a pinch of dried thyme or rosemary to the cream sauce for an extra layer of herbal complexity.
  • Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven or microwave.