White Cheddar and Parmesan Potato Gratin

"A long time family favorite! To save time saute the onions and garlic well in advance or even a day ahead and refrigerate. A word of advice...oven to table only with this dish, the cheese and cream will break down and become oily if you reheat it."
 
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Ready In:
2hrs 10mins
Ingredients:
8
Serves:
6
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ingredients

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directions

  • Set oven to 375 degrees.
  • Butter a 13 x 9-inch glass baking dish.
  • Saute the onions and garlic in some oil or butter until soft (about 5-6 minutes) set aside.
  • In a small bowl, whisk together the rosemary and whipping cream.
  • Place HALF of the potatoes in the dish, overlapping slightly.
  • Sprinkle with salt and pepper, then about 1-1/4 cups white cheddar cheese, then all of the onion/garlic mixture, then 1/4 cup the Parmesan cheese.
  • Top with remaining potatoes then more salt and pepper.
  • Pour the cream over the potatoes and top remaining 1/4 cup Parmesan cheese, then top with remaining cheddar.
  • Cover loosley with foil and bake about 1 hour.
  • Uncover and bake about 30-40 minutes or until the potatoes are fork-tender.
  • Let sit for about 10 minutes before serving.

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Reviews

  1. Delicious. May I suggest you completely ignore Kitten's suggestion to use 1-2 onions and double the count? I used 2 large-ish onions, and now I wish I'd used more. I let the onions caramelize slowly, for about 20 minutes and then added the garlic for another 10. Made that earlier in the day. You will probably need a 2 hour baking time, or atleast I did. I am presently on my second serving, in front of the computer - I didn't hae dessert so am justifying the calories like that. :-)
     
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