Sweet Potato & Cranberry Gratin Recipe
Introduction
This Sweet Potato & Cranberry Gratin is a delightful blend of creamy, sweet, and tangy flavors perfect for holiday gatherings or comforting weeknight dinners. It combines tender sweet potatoes with fresh cranberries, rich Gruyère cheese, and a crunchy topping for a cozy side dish everyone will love.

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: In a large pot, boil the sweet potato slices until tender, about 10-15 minutes. Drain well.
- Step 3: Grease a baking dish and layer half of the sweet potatoes in the dish.
- Step 4: Sprinkle half of the fresh cranberries evenly over the sweet potatoes.
- Step 5: In a bowl, whisk together the heavy cream, brown sugar, cinnamon, salt, and pepper. Pour half of this mixture over the layered sweet potatoes and cranberries.
- Step 6: Repeat the layering with the remaining sweet potatoes and cranberries. Pour the remaining cream mixture over the top.
- Step 7: Evenly sprinkle the shredded Gruyère cheese and breadcrumbs on top.
- Step 8: Bake in the preheated oven 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 vegan version, substitute heavy cream with coconut cream and use a plant-based cheese alternative.
- You can prepare the gratin a day in advance and bake it right before serving to save time.
- Adjust the amount of brown sugar depending on the natural sweetness of your sweet potatoes.
Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F (175°C) until warmed through to keep the topping crisp. Avoid microwaving to preserve texture.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use frozen cranberries for this recipe?
Yes, frozen cranberries work well. Just make sure to thaw and drain them slightly before layering to prevent excess moisture.
Can I make this gratin gluten-free?
Absolutely! Use gluten-free breadcrumbs or crushed gluten-free crackers for the topping to keep it safe for gluten-sensitive diets.
PrintSweet Potato & Cranberry Gratin Recipe
This Sweet Potato & Cranberry Gratin is a festive and comforting side dish combining tender boiled sweet potatoes, tart fresh cranberries, and a creamy cinnamon-infused sauce, all topped with shredded Gruyère cheese and crispy breadcrumbs. Perfect for holiday meals, this gratin delivers a delightful balance of sweet and savory flavors with a golden, bubbly finish.
- Prep Time: 20 minutes
- Cook Time: 35 minutes
- Total Time: 55 minutes
- Yield: 6 servings 1x
- Category: Side Dish
- Method: Baking
- Cuisine: American
Ingredients
Vegetables
- 2 pounds sweet potatoes, peeled and sliced
- 1 cup fresh cranberries
Dairy & Cheese
- 1 cup heavy cream
- 1 cup shredded Gruyère cheese
Dry Ingredients & Spices
- 1/2 cup breadcrumbs
- 1/4 cup brown sugar
- 1 teaspoon cinnamon
- Salt and pepper to taste
Instructions
- Preheat Oven: Preheat the oven to 375°F (190°C) to ensure the baking dish will cook evenly once the layered ingredients are prepared.
- Boil Sweet Potatoes: In a large pot, boil the peeled and sliced sweet potatoes until they are tender, about 10-15 minutes. This softens the potatoes, making them perfect for layering in the gratin.
- Layer Sweet Potatoes: Drain the sweet potatoes and place half of them in a greased baking dish, forming an even layer.
- Add Cranberries: Sprinkle half of the fresh cranberries evenly over the layer of sweet potatoes, adding a tart contrast to the sweetness of the potatoes.
- Prepare Cream Mixture: In a bowl, mix together the heavy cream, brown sugar, cinnamon, salt, and pepper until well combined. This mixture will add flavor and moisture to the gratin.
- Pour Cream Mixture: Pour half of the cream mixture over the sweet potato and cranberry layers, ensuring even coverage.
- Repeat Layers: Repeat the layers with the remaining sweet potatoes, cranberries, and cream mixture to build the gratin fully.
- Add Toppings: Top the gratin with shredded Gruyère cheese followed by breadcrumbs for a crispy, golden crust.
- Bake: Place the baking dish in the preheated oven and bake for 30-35 minutes, or until the top is golden brown and the gratin is bubbly throughout.
- Cool and Serve: Let the gratin cool for a few minutes before serving to allow it to set and make it easier to dish out.
Notes
- For a vegan version, substitute the heavy cream with coconut cream and the Gruyère cheese with a plant-based cheese alternative.
- This gratin can be prepared a day in advance and baked just before serving for convenience during busy holiday meals.
- Adjust the amount of brown sugar depending on the natural sweetness of the sweet potatoes to balance the flavors to your taste.
Keywords: Sweet Potato, Cranberry, Gratin, Festive Recipe, Holiday Side Dish

