As the chill of winter begins to settle in, I find myself yearning for dishes that warm both the heart and the home. One such treasure is this Festive Sweet Potato Cranberry Gratin, a delightful creation that combines the earthy sweetness of tender sweet potatoes with the tart pop of cranberries. Imagine layering these ingredients and watching them transform into a creamy, bubbling masterpiece in the oven—it’s like unwrapping a gift on your dinner table!
This dish is a perfect fit for holiday gatherings or those cozy family dinners when you want to impress without fretting over complicated recipes. With only a handful of festive ingredients and less than 15 minutes of prep time, it’s an easy option that feels luxurious. Plus, the contrasting flavors and colors make every bite a celebration. So, let’s dive into this delightful recipe that is sure to become a beloved staple in your kitchen. Trust me, it’s the kind of comfort food that leaves everyone asking for seconds!
Why You'll Love This Festive Sweet Potato Cranberry Gratin
- This recipe is incredibly easy to prepare, allowing you to enjoy the cooking process without stress.
- The rich, creamy flavors paired with the tart cranberries create a taste sensation that will delight your palate.
- Its versatility makes it perfect for any occasion, whether it’s a holiday feast or a cozy family dinner.
- Visually, the vibrant colors of sweet potatoes and cranberries create a stunning dish that will impress your guests and add charm to your table.
Festive Sweet Potato Cranberry Gratin Ingredients
For the Gratin
• Sweet potatoes – 3–4 medium, peeled and thinly sliced for that perfect creamy texture.
• Cranberries – 1 cup, fresh or frozen, adding a tangy pop that balances the sweetness of the dish.
• Heavy cream – 1 cup, providing richness that makes this gratin decadent.
• Unsalted butter – 2 tablespoons, melted, enhancing the flavors beautifully.
• Maple syrup or honey – 2 tablespoons, for a touch of natural sweetness to complement the dish.
• Salt – 1/2 teaspoon, because a little seasoning goes a long way in elevating flavors.
• Ground cinnamon – 1/2 teaspoon, warming spice that adds depth and holiday charm.
• Nutmeg – 1/4 teaspoon, for a hint of earthiness full of festive vibes.
• Black pepper – 1/4 teaspoon, just enough to round off the flavors.
For the Garnish
• Fresh rosemary or thyme – a few sprigs for fragrant herbal notes.
• Extra cranberries – a handful, to scatter on top for a vibrant presentation.
• Maple syrup drizzle – optional, to add a glossy finish and sweetness as a finishing touch.
• Toasted pecans or walnuts – for an added crunch and nutty flavor to round out the gratin.
This Festive Sweet Potato Cranberry Gratin recipe is sure to be a hit at your next gathering!

How to Make Festive Sweet Potato Cranberry Gratin
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Prepare the dish: Lightly grease a 9×13-inch baking dish to prevent sticking and ensure your gratin comes out with ease after baking.
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Slice evenly: Use a mandoline or a sharp knife to thinly slice the sweet potatoes. Aim for uniform slices for even cooking, showcasing their natural beauty.
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Whisk together ingredients: In a bowl, whisk together the heavy cream, melted butter, maple syrup, salt, cinnamon, nutmeg, and pepper until smoothly combined. This creates a rich and flavorful sauce for your gratin.
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Layer ingredients: Start by arranging a layer of sweet potatoes in the greased dish. Sprinkle cranberries on top and spoon a generous amount of the cream mixture over. Repeat these layers until you run out of ingredients.
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Bake covered: Cover the dish tightly with foil and bake in a preheated oven at 375°F (190°C) for 40–45 minutes. This allows the sweet potatoes to soften beautifully.
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Finish baking uncovered: Carefully remove the foil and bake for an additional 10–15 minutes, until the top is lightly golden and the cream is bubbling joyfully.
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Let rest: Allow the gratin to sit for at least 10 minutes before slicing. This waiting time helps achieve clean slices and the best texture for serving.
Optional: Top with freshly chopped herbs for added aroma and flavor!
Exact quantities are listed in the recipe card below.
Festive Sweet Potato Cranberry Gratin Variations
Customize your gratin to match your family’s tastes and dietary needs for a truly unique dish!
- Vegan: Replace heavy cream with coconut milk, and use plant-based butter for a delicious dairy-free option.
- Gluten-Free: Ensure all ingredients, such as maple syrup or any added nuts, are certified gluten-free to cater to your guests.
- Extra Crunch: Top with panko bread crumbs mixed with melted butter before the final bake for a delightful crispy topping.
- Cheesy Twist: Add grated cheddar or Parmesan cheese between the layers for a rich, savory spin that cheese lovers will adore.
- Spicy Kick: Sprinkle red pepper flakes or add diced jalapeños to the cranberry layer for a surprising heat that dances on your palate.
- Nutty Flavor: Toss in sliced almonds or hazelnuts instead of pecans or walnuts, offering a unique flavor twist and delightful crunch.
- Herb Infusion: Experiment with different herbs like sage or oregano to enhance the flavor profile—these will bring a fresh, fragrant touch to the dish.
- Caramelized Onions: Mix in sautéed onions for a sweet and savory layer of flavor that elevates the whole gratin experience.
Feel free to explore these variations to create a gratin that feels uniquely yours!
What to Serve with Festive Sweet Potato Cranberry Gratin?
The perfect accompaniments can elevate your Sweet Potato Cranberry Gratin into a feast that warms the soul.
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Crispy Brussels Sprouts: The caramelized edges and earthy flavor bring a delightful contrast to the creamy gratin. Their bitterness perfectly balances the sweetness.
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Herb-Roasted Turkey: Juicy and succulent turkey enhances the holiday spirit of your meal, offering a savory complement to the gratin’s sweetness.
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Garlic Butter Green Beans: Tender green beans with savory garlic butter add a crunchy texture, creating an exciting contrast to the smooth gratin.
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Savory Stuffing: A hearty stuffing with herbs and spices pairs wonderfully, absorbing the rich creaminess of any leftover sauce from the gratin, tying the meal together beautifully.
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Cranberry Sauce: Offer a dollop of homemade cranberry sauce on the side. Its zesty punch brightens each bite of the gratin while enhancing the festive vibe.
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Pumpkin Soup: A warm bowl of creamy pumpkin soup as a starter sets a cozy tone for the meal, echoing the flavors of the season with every sip.
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Spiced Mulled Wine: This warm, aromatic drink enhances the festive nuances of the dinner while complementing the warm spices in the gratin.
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Maple Pecan Pie: End your meal on a sweet note! The crunchy pecans and luscious filling add a holiday flair, creating a memorable conclusion to your dinner.
How to Store and Freeze Festive Sweet Potato Cranberry Gratin
Fridge: Store leftover gratin in an airtight container in the fridge for up to 3 days. Reheat in the oven at 350°F (175°C) until warmed through.
Freezer: For longer storage, freeze slices wrapped tightly in plastic wrap and aluminum foil for up to 2 months. Thaw overnight in the refrigerator before reheating.
Reheating: Reheat in the oven, covered with foil, for about 20 minutes at 350°F (175°C) until heated thoroughly. This helps to maintain the creamy texture of your festive sweet potato cranberry gratin.
Serving Suggestions: Garnish with extra cranberries or nuts before serving to refresh presentation and flavor!
Make Ahead Options
These Festive Sweet Potato Cranberry Gratin are perfect for busy home cooks who want to save time during the holidays! You can slice the sweet potatoes and prepare the cream mixture up to 24 hours in advance. Simply store the sliced sweet potatoes in a bowl of water with a splash of lemon juice to prevent browning, and keep the cream mixture in an airtight container in the refrigerator. When you’re ready to bake, layer the ingredients as directed and bake directly from the fridge. This way, you’ll have a warm and comforting dish ready to impress your guests with minimal effort!
Chef's Helpful Tips
- For the perfect Festive Sweet Potato Cranberry Gratin, ensure your sweet potatoes are sliced uniformly to promote even cooking and a beautiful presentation.
- When layering the ingredients, don’t skimp on the cream mixture as it adds essential richness and flavor throughout the dish.
- If using frozen cranberries, keep in mind they may release extra moisture, so consider adjusting cooking time if necessary.
- Lastly, always let the gratin rest for at least 10 minutes before slicing to achieve cleaner edges and enhance the overall texture.
Festive Sweet Potato Cranberry Gratin Recipe FAQs
How do I select the best sweet potatoes for this gratin?
Absolutely! Look for sweet potatoes that are firm and have smooth, unblemished skin. Avoid any with dark spots or soft spots, as these may be overripe. Medium-sized sweet potatoes will yield the best results—generally, aim for those around 6 inches long for even slicing.
How should I store leftover Festive Sweet Potato Cranberry Gratin?
To store your gratin, place the leftovers in an airtight container and refrigerate them for up to 3 days. Make sure the container seals tightly to keep that creamy goodness intact! When ready to eat, just pop it in a 350°F (175°C) oven until warmed through, about 20 minutes will do the trick.
Can I freeze Festive Sweet Potato Cranberry Gratin?
Yes, you can freeze this delicious dish! Wrap individual slices tightly in plastic wrap and then in aluminum foil. This clever double-wrapping prevents freezer burn and keeps the flavors intact for up to 2 months. When you’re ready to indulge, thaw overnight in the refrigerator, and reheat gently in the oven for best results.
What can I do if my sweet potatoes are too firm after baking?
If your sweet potatoes aren’t as tender as you’d like, it may be due to uneven slicing. For future attempts, ensure slices are about 1/8 inch thick. If you find them firm after baking, simply cover the dish with foil and return it to the oven for an additional 10-15 minutes. The steam will help soften them nicely!
Are there any dietary considerations for this gratin?
Definitely! If you’re making this dish for guests with specific dietary needs, consider using coconut cream instead of heavy cream for a dairy-free version. Also, to avoid nut allergies, you can skip the nut garnish or use seed-based alternatives. Make sure to double-check the ingredients in store-bought items like maple syrup or honey if allergies are a concern.

Equipment
- 9x13-inch baking dish
- mandoline or sharp knife
- Mixing bowl
- Whisk
Ingredients
For the Gratin
- 3–4 medium sweet potatoes peeled and thinly sliced
- 1 cup cranberries fresh or frozen
- 1 cup heavy cream
- 2 tablespoons unsalted butter melted
- 2 tablespoons maple syrup or honey
- 1/2 teaspoon salt
- 1/2 teaspoon ground cinnamon
- 1/4 teaspoon nutmeg
- 1/4 teaspoon black pepper
For the Garnish
- fresh rosemary or thyme a few sprigs
- extra cranberries a handful
- maple syrup drizzle optional
- toasted pecans or walnuts
Instructions
Preparation
- Lightly grease a 9×13-inch baking dish.
- Use a mandoline or a sharp knife to thinly slice the sweet potatoes.
- In a bowl, whisk together the heavy cream, melted butter, maple syrup, salt, cinnamon, nutmeg, and pepper.
- Layer sweet potatoes in the dish, sprinkle cranberries, and spoon the cream mixture over.
- Cover with foil and bake at 375°F (190°C) for 40–45 minutes.
- Remove foil and bake for an additional 10–15 minutes.
- Let the gratin rest for at least 10 minutes before slicing.




