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Oct 27

Sweet Potato Gratin

from Bobbe’s Community Food

Sweet Potato Gratin

An idea has been bouncing around in my head for a few weeks and finally I’ve got it out and prepared. The idea originated with the sweet potato.  I like sweet potatoes and I was giving some thought to something new for the coming Thanksgiving holiday.  I am not a big fan of the yam and even less of a fan of the yam turned candy with marshmallows.

I wanted something that would be a little more savory but still accent the sweetness of the sweet potato.  I also liked the idea of something I could prep ahead.  Did you know that sweet potatoes and yams are not even remotely related to each other and neither of them is related to the potato. Sweet potatoes are from the same family as morning glories. I like that.

Here’s a little sweet potato gratin that I cooked up.  Gratin is just a fancy word for a dish that has a browned crust on top. You can switch the sweet potatoes for yams if that is your preference, but do me a favor try it with sweet potatoes first.

Sweet Potato & Caramelized Onion Gratin
Ingredients:
3-5 medium sweet potatoes (2-3 lbs)
1 cup grated Parmesan cheese

2 tablespoons olive oil
3-4 cups chopped onions
3 tablespoons dark brown sugar
pinch to 1/4 teaspoon cayenne pepper

1/4 cup butter

Peel and thinly slice the sweet potatoes

2 1/2 tablespoons flour

2 cups of half and half, light cream, or whole milk
1 1/2 teaspoon salt
1/4 teaspoon dry ground mustard
1/4 teaspoon sweet paprika
1/4 teaspoon nutmeg
Preheat the oven to 350 degrees and butter or spray an oblong baking dish, 9×13 or similar.

Peel and slice the sweet potatoes very thinly and set aside.  1/8th inch thick is a good thickness.

Caramelize the onions and add the brown sugar and cayenne

Chop the onion and add them to a skillet with the olive oil.  Begin to sweat the onions slowly.  Once they have lost most of their water, they will begin to caramelize into a nice golden color.  After the onions have caramelized to a light brown, add the dark brown sugar and the cayenne pepper.  Remove from the heat and set aside.

Create the sauce

In another skillet, create a roux with the 1/4 cup butter and the flour.  Add the 2 cups of cream/milk all at once stirring until it is smooth and bubbly.  Turn off the heat and stir in the salt, mustard, paprika, nutmeg, and a few grinds of black pepper.

In your buttered dish, layer half of the sliced potatoes, half the sauce, 1/2 cup of the grated Parmesan and half the onions with their sweet sauce.  Create a second layer with the remaining ingredients, ending with the onions once again.

Cover the dish tightly with aluminum foil.  You can refrigerate it at this point until the next day or until you are ready to bake it.  Bake in a 350 degree oven, covered with the foil for 45 minutes.  At 45 minutes, remove the foil and continue baking for another 15-20 minutes until it is browned and bubbly.

This little dish pairs nicely with turkey, but also with a pork roast or chicken.

Enjoy!

Permanent link to this article: http://missoulafoodcoop.com/sweet-potato-gratin/

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