SPICED SWEET POTATO GRATIN

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Spiced Sweet Potato Gratin image

Categories     Ginger     Side     Bake     Thanksgiving     Casserole/Gratin     Cheddar     Curry     Sweet Potato/Yam     Fall     Cinnamon     Sour Cream     Bon Appétit     Vegetarian     Pescatarian     Wheat/Gluten-Free     Peanut Free     Tree Nut Free     Soy Free     No Sugar Added     Kosher

Yield Makes 10 servings

Number Of Ingredients 8

4 pounds red-skinned sweet potatoes (yams; about 3 1/4 pounds)
1 tablespoon curry powder
1 tablespoon ground cumin
3/4 teaspoon ground cinnamon
3/4 teaspoon ground ginger
1/2 teaspoon (scant) salt
1 1/2 cups sour cream, divided
3 cups shredded extra-sharp white cheddar (about 12 ounces)

Steps:

  • Preheat oven to 350°F. Cook sweet potatoes in large pot of boiling salted water until just tender, about 20 minutes (do not overcook). Drain well and cool. Peel sweet potatoes; cut into 1/4-inch-thick slices.
  • Mix curry powder, cumin, cinnamon, ginger, and salt in small bowl to blend. Completely line bottom of 9-inch-diameter springform pan with sweet potato slices, filling in any spaces with cut-up sweet potato slices. Press down lightly. Spread 1/2 cup sour cream over sweet potatoes. Sprinkle 1 tablespoon spice mixture over sour cream. Sprinkle with 1 cup cheese. Repeat twice with remaining sweet potatoes, sour cream, spice mixture, and cheese. Place pan on rimmed baking sheet; bake until cheese is melted and sweet potatoes are heated through, about 40 minutes. DO AHEAD Can be made 8 hours ahead. Cover and chill. If desired, reheat in 400°F oven until hot, about 15 minutes.
  • Remove pan sides from gratin; cut into wedges. Serve gratin warm or at room temperature.

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