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Sweet Potato & Cranberry Gratin Recipe

4.5 from 53 reviews

A comforting and festive Sweet Potato & Cranberry Gratin featuring tender sweet potatoes layered with fresh cranberries, creamy cinnamon-spiced sauce, and topped with melted Gruyère cheese and crunchy breadcrumbs. This baked dish offers a perfect balance of sweet, savory, and tart flavors ideal for holiday gatherings or cozy dinners.

Ingredients

Scale

Vegetables and Fruits

  • 2 pounds sweet potatoes, peeled and sliced
  • 1 cup fresh cranberries

Dairy

  • 1 cup heavy cream
  • 1 cup shredded Gruyère cheese

Dry Ingredients and Spices

  • 1/2 cup breadcrumbs
  • 1/4 cup brown sugar
  • 1 teaspoon cinnamon
  • Salt and pepper to taste

Instructions

  1. Preheat Oven: Preheat your oven to 375°F (190°C) to prepare for baking the gratin.
  2. Boil Sweet Potatoes: In a large pot, boil the peeled and sliced sweet potatoes until tender, which should take about 10-15 minutes.
  3. Prepare First Layer: Drain the sweet potatoes well, then layer half of them in a greased baking dish to form the base of the gratin.
  4. Add Cranberries: Evenly sprinkle half of the fresh cranberries over the layer of sweet potatoes to add a tart contrast.
  5. Make Cream Mixture: In a bowl, combine the heavy cream, brown sugar, cinnamon, salt, and pepper, mixing thoroughly. Pour half of this mixture over the layered sweet potatoes and cranberries.
  6. Repeat Layers: Repeat the layering process with the remaining sweet potatoes, cranberries, and cream mixture to build up the gratin.
  7. Top with Cheese and Breadcrumbs: Sprinkle the shredded Gruyère cheese and breadcrumbs evenly over the top layer for a rich, golden crust.
  8. Bake: Place the baking dish in the preheated oven and bake for 30-35 minutes until the top is golden brown and bubbly, indicating that the gratin is cooked through.
  9. Cool and Serve: Allow the gratin to cool for a few minutes before serving to let the flavors meld and to make slicing easier.

Notes

  • This dish can be prepared ahead of time and refrigerated before baking; just add a few extra minutes to the baking time.
  • Gruyère cheese can be substituted with sharp cheddar or mozzarella for different flavor profiles.
  • For a gluten-free version, replace breadcrumbs with gluten-free breadcrumbs or crushed nuts.
  • Adjust cinnamon quantity according to your spice preference for a milder or stronger flavor.
  • Serve as a side dish for holiday meals or as a vegetarian main course with a green salad.

Keywords: sweet potato gratin, cranberry gratin, baked sweet potato, holiday side dish, vegetarian gratin, Gruyère cheese, cinnamon, brown sugar