Herbed Potato Gratin
(serves 10)
*Those of us who have
made gratins, or have at least attempted them, know they are heavenly things,
both visually and with regard to taste. Though
a gratin is not something you can whip up in 30 minutes and is much more a
labor of love, it is so fun and incredibly rewarding to make for a nice Sunday
supper or a dinner entertaining friends or family.
Ingredients
4 large baking potatoes, peeled
1 medium onion or 2 small onions
2 garlic cloves, chopped
2 2/3 cups (2/3 pound) Gruyère Cheese (grated)
2 ¼ cups heavy cream
1 tablespoon chopped thyme
1 teaspoon chopped rosemary
2 tablespoons good olive oil
1 tablespoon unsalted butter (cut in half)
1 teaspoon kosher salt
¾ teaspoon freshly ground pepper
Directions
Preheat oven to 350°F. Use
½ tablespoon of unsalted butter to butter your baking dish (9x13, 9x14, or a
large round and deep dish will work well).
Heat the other ½ tablespoon of unsalted butter and 2 tablespoons olive
oil in a pan. Slice the medium or 2
small onions thinly and sauté them on medium low heat, stirring occasionally,
for 10 minutes. You want the onions to
get tender but you do not want them to brown.
If they start to brown just turn down the heat a bit and monitor
them.
In a saucepan add the cream, thyme, rosemary, and chopped garlic. Warm
cream on medium heat. Don’t let it boil,
you just want it to get hot so you can infuse all of those wonderful herbs and
the garlic into it, but you don’t need it to simmer or boil. Meanwhile, slice the potatoes thinly with a
mandoline. If you don’t have a mandoline
you can easily use a sharp knife and slice the potatoes by hand. A mandoline just speeds things up a bit and
ensures an easy even cut (I’m not into a lot of “special equipment” in the
kitchen but a mandoline pays for itself in convenience). Place the sliced potatoes in a large
bowl. Once the onions are done, remove
them from the heat. Remove the herb
infused cream from the heat. If the
cream has formed a skin at all, just skim it off of the top and discard the
skimmed portion.
Add 2 cups of the grated Gruyère to the potatoes and give it a good
stir. Add the sautéed onions to the
potatoes. Separate 3 tablespoons of the herb
cream and set aside in a small dish.
Pour the rest of the cream over the potatoes. Sprinkle the potato mixture with 1 teaspoon
kosher salt and ¾ teaspoon ground black pepper.
Stir well. Pour the mixture into
the baking dish and press down the potatoes (I do it with my hand to ensure it
is smooth and even). Combine the 3 tablespoons
of separated herb cream and 2/3 cup Gruyère and sprinkle it over the top of the
potatoes. Bake 1 ½ hours until the
gratin is browned and nice and bubbly.
Let the gratin sit for15 minutes before serving.

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