Roasted Parmesan Creamed Onions Recipe
Introduction
Roasted Parmesan Creamed Onions are a simple yet elegant side dish that brings out the natural sweetness of onions. With a creamy parmesan sauce and gentle roasting, this recipe transforms humble onions into a comforting treat perfect for any meal.

Ingredients
- 4 large sweet onions, peeled and sliced ½ inch thick
- 3 tablespoons extra virgin olive oil
- 1 cup heavy cream
- ¼ cup white wine
- ¼ cup grated Parmesan cheese
- Salt and pepper, to taste
Instructions
- Step 1: Preheat the oven to 375°F (190°C). Carefully place the sliced onions into a parchment-lined baking dish, keeping the rings intact and together. Drizzle with olive oil and season with salt and pepper.
- Step 2: While the onions roast, combine the heavy cream and white wine in a saucepan. Heat gently until the cream begins to simmer around the edges, then remove from heat and set aside.
- Step 3: Remove the onions from the oven and transfer them, still together, into a baking dish. Slowly pour the warm cream mixture over the onions, then sprinkle evenly with grated Parmesan cheese. Cover the dish tightly with foil and return to the oven.
- Step 4: Bake covered for 20 minutes. Then remove the foil carefully and roast for an additional 5 minutes, until the onions are browned and caramelized. Remove from the oven and serve warm.
Tips & Variations
- Use sweet onions like Vidalia or Walla Walla for the best flavor and natural sweetness.
- For a richer dish, add a sprinkle of fresh thyme or rosemary before baking.
- Substitute white wine with vegetable broth if you prefer a non-alcoholic version.
Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven or microwave until warmed through to preserve the creamy texture and caramelized flavor.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use other types of onions for this recipe?
While sweet onions are ideal for their mild flavor and sweetness, you can use yellow onions if needed. They may have a sharper taste but will still work well when roasted and creamed.
Is it possible to make this recipe dairy-free?
Yes, you can substitute the heavy cream with coconut cream or a plant-based cream alternative, and use a dairy-free Parmesan-style cheese to keep the dish vegan-friendly.
Print
Roasted Parmesan Creamed Onions Recipe
- Total Time: 45 minutes
- Yield: 4 servings 1x
Description
Roasted Parmesan Creamed Onions is a deliciously rich and creamy side dish featuring sweet onions roasted to caramelized perfection and smothered in a luscious Parmesan-infused cream sauce. This elegant recipe combines simple ingredients for a comforting and flavorful accompaniment ideal for any meal.
Ingredients
Onions
- 4 large sweet onions, peeled and sliced ½ inch thick
Seasoning and Oil
- 3 tablespoons extra virgin olive oil
- Salt and pepper, to taste
Cream Sauce
- 1 cup heavy cream
- ¼ cup white wine
- ¼ cup grated Parmesan cheese
Instructions
- Preheat and Prepare Onions: Preheat your oven to 375°F. Carefully place the sliced onions into a parchment-lined baking dish without separating the onion rings. Drizzle the onions evenly with extra virgin olive oil and season generously with salt and pepper.
- Make the Cream Sauce: While the onions roast, combine the heavy cream and white wine in a saucepan over medium heat. Heat the mixture until it begins to simmer along the edges, then remove it from the heat and set aside.
- Add Cream Sauce and Parmesan: Once the onions have roasted initially, carefully transfer them to another baking dish, keeping the rings intact. Slowly pour the warm cream mixture over the onions and sprinkle the grated Parmesan cheese evenly on top. Cover the dish tightly with foil and return it to the oven.
- Finish Baking: Bake the covered onions for 20 minutes, then remove the foil carefully. Continue roasting uncovered for an additional 5 minutes until the onions are browned and caramelized to your liking. Remove from the oven and serve warm.
Notes
- Be careful not to separate the onion rings to maintain their shape during roasting.
- If you prefer a thicker sauce, you can simmer the cream and wine mixture for a few extra minutes before pouring it over the onions.
- Use good quality Parmesan cheese for the best flavor.
- Roasting times may vary slightly depending on your oven; watch for caramelization without burning.
- This dish pairs beautifully with roasted meats or as part of a vegetarian meal.
- Prep Time: 10 minutes
- Cook Time: 35 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American
Keywords: roasted onions, creamed onions, parmesan onions, baked onion recipe, side dish, creamy onions

