Roasted Parmesan Creamed Onions

 

Roasted Parmesan Creamed Onions: A Rich, Elegant Side Dish You’ll Crave Again and Again

When ordinary sides just won’t do, Roasted Parmesan Creamed Onions step in to steal the show. This dish turns humble sweet onions into a luxurious, golden, melt-in-your-mouth masterpiece—perfectly roasted and drenched in a creamy Parmesan wine sauce. It’s ideal for holidays, dinner parties, or whenever you want something uniquely comforting and unforgettable.

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  Why You’ll Love This Recipe

Melt-in-your-mouth texture: Slow-roasted onions become tender and lightly caramelized.

Rich and creamy flavor: The sauce is made with heavy cream, white wine, and Parmesan—pure decadence.

Simple ingredients, gourmet taste: It looks fancy, but it’s surprisingly easy to prepare.

Perfect for holidays: A stunning side dish that pairs with turkey, beef, chicken, or as a vegetarian centerpiece.

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  Ingredients (and Why They Matter)

4 large sweet onions, peeled and sliced ½ inch thick

Sweet varieties like Vidalia or Walla Walla roast beautifully, turning buttery and slightly sweet in the oven.

3 tablespoons extra virgin olive oil

Used to coat and roast the onions, enhancing their flavor and helping with caramelization.

1 cup heavy cream

The base of your velvety sauce—rich, thick, and essential for a luxurious finish.

¼ cup dry white wine

Adds acidity and brightness. Sauvignon Blanc or Pinot Grigio are great choices.

¼ cup grated Parmesan cheese

Infuses the sauce with deep, savory flavor and helps thicken it naturally.

Salt and freshly ground black pepper, to taste

Essential for balancing sweetness and enhancing flavor.

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  Step-by-Step Instructions

Step 1: Prep Your Oven and Onions

Preheat your oven to 400°F (200°C). Line a large baking sheet with parchment paper.

Peel and slice the onions into ½-inch thick rounds, trying to keep the rings intact. Arrange them in a single layer on the baking sheet.

Step 2: Roast to Perfection

Drizzle the onions with olive oil, turning gently to coat both sides. Season with salt and pepper.

Roast for 30–35 minutes, flipping once halfway through, until the onions are tender and caramelized on the edges.

Step 3: Make the Parmesan Cream Sauce

While the onions roast, prepare your sauce.

In a small saucepan, combine heavy cream and white wine over medium heat. Bring to a gentle simmer, then reduce the mixture by about one-third, stirring occasionally—this takes 8–10 minutes.

Add the grated Parmesan and stir until melted and smooth. Simmer another 2–3 minutes to thicken slightly. Season with salt and pepper to taste.

Step 4: Combine and Bake

Transfer the roasted onions to a shallow baking dish. Pour the warm Parmesan cream sauce over the onions.

Return the dish to the oven for 5–7 minutes, just until the sauce is bubbly and lightly golden on top.

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  Pro Tips for Success

Use a mandoline for even onion slices, ensuring uniform roasting.

Add a pinch of nutmeg to the cream sauce for subtle warmth.

Use freshly grated Parmesan for best flavor and melting.

For a stronger cheesy bite, mix in some Gruyère or Fontina with the Parmesan.

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🍽️ Serving Suggestions

These roasted creamed onions pair beautifully with:

Roast turkey or chicken

Beef tenderloin or steak

Grilled pork chops

Vegetarian mains like lentil loaf or mushroom risotto (just skip the mushrooms if you’re allergic!)

They’re also incredible as part of a Thanksgiving or Christmas spread—your guests will beg for the recipe!

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  Final Thoughts

Roasted Parmesan Creamed Onions are the kind of dish that transforms your table from ordinary to unforgettable. With deep, caramelized flavor and a luxurious creaminess, they’re an instant classic that’s both simpl

e and sophisticated.

Don’t wait for a holiday to make them—treat yourself to something extraordinary tonight.