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Onion Gratin

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“I went to Roy's and had the most delicious onion gratin. I went on a search, and this is the closest I can find. It is creamy, cheesy and makes a wonderful side dish to any steak or chicken dinner. I used Gruyere cheese.”
READY IN:
1hr
SERVES:
4
UNITS:
US

Ingredients Nutrition

Directions

  1. Spread the onions onto a baking sheet and drizzle them with olive oil.
  2. Season with salt and pepper and sprinkle with the thyme.
  3. Bake in a preheated 375°F oven for 15 minutes.
  4. Meanwhile heat the heavy cream and wine in a sauce pan until it starts to bubble on the edges.
  5. Transfer the onions to a baking dish and spoon the cream onto them.
  6. Cover in foil and bake for another 35 minutes.
  7. Remove the foil and sprinkle the parmigiano reggiano on top.
  8. Increase the temperature to 450°F and bake until golden brown, about 5 minutes.

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