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Creamy Roasted Parmesan Onions: A Mouthwatering Delight

by Jennah
written by Jennah

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Looking for a side dish that’s both simple and decadent? Look no further than these creamy roasted parmesan onions. Sweet onions are thinly sliced, then roasted to perfection before being drenched in a rich and flavorful cream sauce and topped with grated parmesan cheese. This dish is sure to please any palate and is perfect for any occasion.

My husband is a self-proclaimed meat-and-potatoes kind of guy, but when I made these roasted parmesan creamed onions for him, he couldn’t stop raving about how delicious they were. The combination of sweet, caramelized onions with the creamy, savory sauce was a match made in heaven. We’ve since made this recipe a staple in our household, and it’s always a hit whenever we have guests over.

“Why These Creamy Roasted Parmesan Onions Are a Must-Try”

  • The combination of roasted onions, cream, and parmesan cheese creates a rich and indulgent flavor that’s sure to please any palate.
  • This recipe is simple to make, but impressive enough to serve at any dinner party or holiday gathering.
  • The use of white wine in the cream sauce adds a subtle depth of flavor that complements the sweetness of the onions perfectly.
  • The addition of cayenne pepper is optional but adds a subtle kick of heat that takes this dish to the next level.
  • This recipe can easily be adapted to fit different dietary needs, such as using a plant-based cream alternative or omitting the cheese for a dairy-free option.

Ingredients:

  • 3 sweet onions, peeled and thinly sliced (about 600g or 1.3 lb)
  • 1 cup (240 ml) heavy cream
  • 1/4 cup (60 ml) white wine
  • 1/2 cup (50g) grated parmesan cheese
  • 4 tablespoons unsalted butter
  • 3 tablespoons extra-virgin olive oil
  • 1 teaspoon garlic powder
  • 1/4 teaspoon cayenne pepper (optional)
  • kosher salt and freshly ground pepper, to taste

Directions:

  1. Preheat oven to 375º F (190º C).
  2. Spread the sliced onions in a 9×13-inch (23×33 cm) baking dish, keeping the rings and layers intact. Drizzle with olive oil and season generously with salt and pepper.
  3. Roast the onions in the preheated oven for 15 minutes, or until they are softened.
  4. Increase the oven temperature to 450º F (230º C).
  5. In a medium saucepan, combine the heavy cream, white wine, butter, garlic powder, and cayenne pepper (if using). Cook over medium heat until the butter is melted and bubbles form on the outside edge of the cream.
  6. Remove the cream sauce from heat and pour it over the pre-roasted onions, making sure to cover all the onions. Sprinkle the grated parmesan cheese over the top.
  7. Cover the baking dish with aluminum foil and bake for another 20 minutes. Remove the foil and bake for an additional 5-10 minutes, or until the onions are caramelized and the cheese is golden brown.
  8. Remove the dish from the oven and serve hot. Enjoy!

Notes:

  • If you’re short on time, you can skip the roasting step and simply sauté the onions in a skillet until they are softened.
  • If you’re looking for a dairy-free option, you can omit the parmesan cheese or substitute it with a vegan alternative.

Creamy Roasted Parmesan Onions

Looking for a side dish that's both simple and decadent? Look no further than these creamy roasted parmesan onions.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 40 minutes
Course Side Dish
Cuisine American
Servings 6

Ingredients
  

  • 3 sweet onions peeled and thinly sliced (about 600g or 1.3 lb)
  • 1 cup 240 ml heavy cream
  • 1/4 cup 60 ml white wine
  • 1/2 cup 50g grated parmesan cheese
  • 4 tablespoons unsalted butter
  • 3 tablespoons extra-virgin olive oil
  • 1 teaspoon garlic powder
  • 1/4 teaspoon cayenne pepper optional
  • kosher salt and freshly ground pepper to taste

Instructions
 

  • Preheat oven to 375º F (190º C).
  • Spread the sliced onions in a 9x13-inch (23x33 cm) baking dish, keeping the rings and layers intact. Drizzle with olive oil and season generously with salt and pepper.
  • Roast the onions in the preheated oven for 15 minutes, or until they are softened.
  • Increase the oven temperature to 450º F (230º C).
  • In a medium saucepan, combine the heavy cream, white wine, butter, garlic powder, and cayenne pepper (if using). Cook over medium heat until the butter is melted and bubbles form on the outside edge of the cream.
  • Remove the cream sauce from heat and pour it over the pre-roasted onions, making sure to cover all the onions. Sprinkle the grated parmesan cheese over the top.
  • Cover the baking dish with aluminum foil and bake for another 20 minutes. Remove the foil and bake for an additional 5-10 minutes, or until the onions are caramelized and the cheese is golden brown.
  • Remove the dish from the oven and serve hot. Enjoy!

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