Creamy Roasted Parmesan Onions

Creamy Roasted Parmesan Onions recipe

healty meal, low carbs meals, keto meal

Onions are a versatile ingredient often used as a supporting player in dishes. However, this recipe elevates onions to the star of the show, turning them into a creamy, savory side dish that’s perfect for any meal. Roasting the onions brings out their natural sweetness, which pairs beautifully with the rich Parmesan cream sauce. This dish is simple to prepare and can be served alongside any meat or as a satisfying vegetarian option.


  • 3 Vidalia onions, peeled and sliced thin (rings left intact)
  • ¼ cup white wine
  • 1 cup heavy cream
  • 4 tablespoons unsalted butter
  • ½ cup Parmesan cheese, grated
  • 3 tablespoons olive oil
  • 1 teaspoon garlic powder
  • ¼ teaspoon cayenne pepper (optional)
  • Salt and pepper to taste


  1. Prepare the Onions:
    • Preheat your oven to 400°F (200°C).
    • Peel the Vidalia onions and slice them thinly, keeping the rings intact.
  2. Roast the Onions:
    • Place the sliced onions on a baking sheet. Drizzle with olive oil and season with salt and pepper.
    • Roast in the preheated oven for 25-30 minutes, or until the onions are tender and slightly caramelized.
  3. Make the Cream Sauce:
    • While the onions are roasting, melt the butter in a medium saucepan over medium heat.
    • Add the white wine to the saucepan and cook for about 2 minutes, allowing the alcohol to evaporate.
    • Stir in the heavy cream, garlic powder, and cayenne pepper (if using). Bring the mixture to a simmer and cook for about 5 minutes, or until the sauce has thickened slightly.
  4. Combine and Bake:
    • Remove the roasted onions from the oven and reduce the oven temperature to 375°F (190°C).
    • Transfer the onions to a baking dish. Pour the cream sauce over the onions, making sure they are well-coated.
    • Sprinkle the grated Parmesan cheese evenly over the top.
  5. Bake:
    • Place the baking dish in the oven and bake for an additional 15-20 minutes, or until the cheese is melted and golden brown.
  6. Serve:
    • Remove from the oven and let cool slightly before serving.
    • Garnish with additional Parmesan cheese and fresh parsley, if desired.

Cook’s Tips and Variations:

  • Onion Varieties: While Vidalia onions are recommended for their sweetness, you can also use other sweet onions such as Walla Walla or even yellow onions in a pinch.
  • Add Spice: If you prefer a spicier dish, increase the amount of cayenne pepper or add a pinch of red pepper flakes.
  • Yogurt Substitute: Although heavy cream provides a rich texture, you can try substituting Greek yogurt for a lighter version. Be sure to use full-fat Greek yogurt and whisk it well to prevent curdling.
  • Cheese Variations: Experiment with different cheeses like Gruyère or Pecorino Romano for a unique twist.

Frequently Asked Questions (FAQs):

Q: What type of onion is best in this dish, sweet or not? A: Sweet onions, such as Vidalia, are recommended for this dish due to their natural sweetness which pairs perfectly with the savory Parmesan cream sauce.

Q: Can I add a bit of spice to this side dish? A: Absolutely! You can spice up the Creamy Roasted Parmesan Onions by adding red pepper flakes or a pinch of cayenne pepper.

Q: What do I do with the leftovers? A: Store any leftovers in an airtight container in the refrigerator for 2-3 days. Reheat in the microwave until warmed through before serving.

Q: Could I use yogurt rather than heavy cream? A: While heavy cream is recommended for its richness, you can try using full-fat Greek yogurt. The texture might be slightly different, so whisk it well to prevent curdling and ensure a smooth sauce.

Creamy Roasted Parmesan Onions are a delightful and unexpected way to enjoy this humble vegetable. The combination of sweet roasted onions and a rich Parmesan cream sauce creates a side dish that is both hearty and satisfying. Whether served alongside a main course or enjoyed on their own, these onions are sure to be a hit at your table. Give this recipe a try and transform your ordinary onions into a gourmet delight!

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healty meal, low carbs meals, keto meal

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