Sweet Potato Cranberry Gratin Recipe
Introduction
This Sweet Potato Cranberry Gratin is a festive and flavorful dish perfect for holiday gatherings or cozy family dinners. Creamy sweet potatoes combine beautifully with tart cranberries, all topped with a golden Gruyère crust. It’s an inviting side that’s both comforting and elegant.

Ingredients
- 2 pounds sweet potatoes, peeled and sliced
- 1 cup fresh cranberries
- 1 cup heavy cream
- 1 cup shredded Gruyère cheese
- 1/2 cup breadcrumbs
- 1/4 cup brown sugar
- 1 teaspoon cinnamon
- Salt and pepper to taste
Instructions
- Step 1: Preheat the oven to 375°F (190°C).
- Step 2: Boil the sweet potato slices in a large pot until tender, about 10-15 minutes. Drain well.
- Step 3: Lightly grease a baking dish and layer half of the sweet potatoes evenly on the bottom.
- Step 4: Sprinkle half of the fresh cranberries evenly over the sweet potato layer.
- Step 5: In a bowl, whisk together the heavy cream, brown sugar, cinnamon, salt, and pepper. Pour half of this mixture over the sweet potatoes and cranberries.
- Step 6: Repeat the layering with the remaining sweet potatoes and cranberries. Pour the remaining cream mixture on top.
- Step 7: Evenly sprinkle the shredded Gruyère cheese and breadcrumbs over the top layer.
- Step 8: Bake the gratin for 30-35 minutes, until the top is golden brown and bubbly.
- Step 9: Allow the gratin to cool for a few minutes before serving.
Tips & Variations
- For a nuttier flavor, substitute Gruyère with sharp cheddar or fontina cheese.
- Add a handful of chopped fresh thyme or rosemary to the cream mixture for an herby twist.
- Use gluten-free breadcrumbs or crushed nuts as a topping to keep this dish gluten-free.
- To make peeling easier, microwave whole sweet potatoes for a few minutes before slicing.
Storage
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, cover the gratin with foil and warm in a 350°F (175°C) oven for about 15-20 minutes until heated through. Avoid microwaving to keep the topping crisp.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I prepare this gratin ahead of time?
Yes, you can assemble the dish up to a day in advance. Cover and refrigerate it, then bake it fresh just before serving, adding a few extra minutes to the baking time if chilled.
Can I substitute canned cranberries for fresh?
Fresh cranberries are best for texture and tartness, but if using canned, drain them well and reduce the brown sugar slightly to balance sweetness.
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Sweet Potato Cranberry Gratin Recipe
- Total Time: 1 hour 5 minutes
- Yield: 6 servings 1x
Description
This Sweet Potato Cranberry Gratin is a festive and comforting dish perfect for holiday gatherings. Layers of tender sweet potatoes and tart cranberries are bathed in a cinnamon-spiced cream mixture, topped with melty Gruyère cheese and a crunchy breadcrumb crust. Baked until golden and bubbly, this gratin combines sweet, savory, and tangy flavors for a delightful side.
Ingredients
Sweet Potato Layer
- 2 pounds sweet potatoes, peeled and sliced
- 1 cup fresh cranberries
Cream Mixture
- 1 cup heavy cream
- 1/4 cup brown sugar
- 1 teaspoon cinnamon
- Salt and pepper to taste
Topping
- 1 cup shredded Gruyère cheese
- 1/2 cup breadcrumbs
Instructions
- Preheat Oven: Preheat your oven to 375°F (190°C) to prepare for baking the gratin.
- Boil Sweet Potatoes: Boil the peeled and sliced sweet potatoes in water for 10-15 minutes until they become tender. Then drain well to remove excess water.
- Layer Sweet Potatoes: Grease a baking dish and layer half of the boiled sweet potato slices evenly at the bottom.
- Add Cranberries: Evenly sprinkle half of the fresh cranberries over the first layer of sweet potatoes to add a tart contrast.
- Prepare and Pour Cream Mixture: In a bowl, combine the heavy cream, brown sugar, cinnamon, salt, and pepper. Stir well and pour half of this mixture over the layered sweet potatoes and cranberries.
- Repeat Layers: Repeat the layering process with the remaining sweet potatoes, cranberries, and cream mixture to build the gratin.
- Add Toppings: Evenly sprinkle the shredded Gruyère cheese and breadcrumbs on top for a crunchy, cheesy finish.
- Bake: Place the baking dish in the preheated oven and bake for 30-35 minutes, or until the top is golden brown and bubbly.
- Cool and Serve: Allow the gratin to cool for a few minutes before serving to let it set and enhance the flavors.
Notes
- Boiling the sweet potatoes before baking ensures even cooking and soft texture.
- Gruyère cheese adds a nutty and creamy flavor that complements the sweetness of the potatoes.
- Fresh cranberries bring a tart contrast that balances the sweetness.
- You can substitute breadcrumbs with crushed pecans or walnuts for added texture.
- For a lighter version, use half-and-half instead of heavy cream.
- Make sure to not overcook the sweet potatoes during boiling to avoid them becoming mushy.
- Prep Time: 20 minutes
- Cook Time: 45 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American
Keywords: Sweet Potato Gratin, Cranberry Sweet Potatoes, Holiday Side Dish, Festive Gratins, Gruyère Cheese Gratin

