Spiced Sweet Potato Gratin

Name: Spiced Sweet Potato Gratin
Total time: 1 h 25 min
Yield: 8 servings
Ingredients: 4 pounds red-skinned sweet potatoes; 1 tablespoon curry powder; 1 tablespoon ground cumin; ¾ teaspoon ground cinnamon; ¾ teaspoon ground ginger; ½ teaspoon salt; 1½ cups sour cream; 3 cups shredded extra-sharp white cheddar

A luxurious layered dish of tender sweet potatoes seasoned with warming Indian-inspired spices, creamy sour cream, and sharp white cheddar cheese. This elegant gratin makes a perfect side dish for special occasions.

8 servings

1 hr 25 min

Published October 4, 2025

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Ingredients

•4 pounds red-skinned sweet potatoes
•1 tablespoon curry powder
•1 tablespoon ground cumin
•¾ teaspoon ground cinnamon
•¾ teaspoon ground ginger
•½ teaspoon salt
•1½ cups sour cream
•3 cups shredded extra-sharp white cheddar

Cooking Instructions

1.
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.
30 min
2.
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.
50 min
3.
Remove pan sides from gratin; cut into wedges. Serve gratin warm or at room temperature.
5 min

Cooking Instructions

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.

30 min

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.

50 min

Remove pan sides from gratin; cut into wedges. Serve gratin warm or at room temperature.

5 min