As I stood in my kitchen, the scent of sweet potatoes and cranberries wafted through the air, instantly transporting me to cozy holiday gatherings with loved ones. If you’re shaking your head in disbelief at how a dish can evoke such warm memories, let me introduce you to a delightful centerpiece: Sweet Potato & Cranberry Gratin. This festive side dish not only shines on the dinner table with its stunning colors and textures but is also incredibly quick and simple to whip up—even amidst the holiday hustle. Imagine creamy layers of sweet potatoes paired with the tartness of fresh cranberries, creating a comforting harmony that will have your guests asking for seconds. Best of all, it can easily be made gluten-free, so everyone can enjoy this heartwarming holiday staple. Are you ready to embrace the deliciousness that awaits?

Why is This Gratin So Irresistible?
Festive Flavors: The combination of sweet potatoes and cranberries creates a deliciously balanced profile—sweet and tart in every bite.
Simple Prep: With just a few ingredients and straightforward steps, you can enjoy a quick cooking experience without sacrificing quality.
Crowd-Pleaser: Perfect for holiday gatherings, this gratin is a visual delight that will impress your family and friends, ensuring it becomes a staple on your table.
Versatile Substitutions: Want to tailor it to your taste? This recipe is highly adaptable; swap in cheddar or even feta cheese for a unique twist!
Make-Ahead Option: Prepare it in advance, saving valuable time on the big day. When it’s time to serve, just pop it in the oven, letting the warm smells fill your home—a charming alternative to fast food options.
Try pairing it with a delicious main course like Cranberry Brie Stuffed Chicken for a complete feast!
Sweet Potato & Cranberry Gratin Ingredients
For the Gratin
• Sweet Potatoes – The star of the dish, providing natural sweetness and creaminess; you can use Yukon gold potatoes for a different twist.
• Fresh Cranberries – Their tart flavor balances the sweet notes; frozen cranberries work well too—simply thaw and drain before adding.
• Heavy Cream – Adds richness and depth; for a vegan option, substitute with coconut cream.
• Brown Sugar – Enhances the overall sweetness; feel free to omit it if you prefer a less sweet dish.
• Cinnamon – Provides warmth and enhances sweetness; nutmeg is a delightful alternative.
• Salt & Pepper – Essential for bringing out the flavors; adjust according to your taste preferences.
• Gruyère Cheese – Offers a rich, melty topping; cheddar or mozzarella can be used as alternatives, while feta adds a tangy edge.
• Breadcrumbs – Creates a delightful crunch on top; opt for gluten-free breadcrumbs or crushed nuts if needed.
Optional Toppings
• Chopped Fresh Herbs – Add a sprinkle of fresh thyme or parsley before serving for a pop of color and flavor.
• Extra Cheese – For cheese lovers, sprinkle some additional cheese on top a few minutes before it’s done.
This recipe for Sweet Potato & Cranberry Gratin is sure to be a highlight at your holiday gatherings!
Step‑by‑Step Instructions for Sweet Potato & Cranberry Gratin
Step 1: Preheat the Oven
Begin by preheating your oven to 375°F (190°C). This ensures that the Sweet Potato & Cranberry Gratin will cook evenly, giving it that desired golden, bubbly finish. While the oven heats, gather your ingredients and prepare your baking dish by greasing it with a bit of butter or oil.
Step 2: Prepare the Sweet Potatoes
Peel and slice the sweet potatoes into even rounds, about ¼ inch thick. Bring a pot of salted water to a boil and add the sweet potato slices. Cook for 10-15 minutes, or until they’re tender yet firm, just starting to break apart. Drain the sweet potatoes and set them aside to cool slightly.
Step 3: Layer the Sweet Potatoes
In your greased baking dish, layer half of the sweet potato slices, slightly overlapping as you go. This creates a beautiful base for your Sweet Potato & Cranberry Gratin. Once layered, admire the vibrant orange color before moving on to the next step!
Step 4: Add the Cranberries
Sprinkle half of the fresh cranberries evenly over the first layer of sweet potatoes. The tartness of the cranberries will perfectly contrast the sweetness of the potatoes, elevating the flavor profile of your gratin. Ensure the cranberries are distributed well for a delicious burst in every bite.
Step 5: Mix the Cream Mixture
In a mixing bowl, combine the heavy cream, brown sugar, cinnamon, salt, and pepper. Whisk until the ingredients are well blended. This creamy mixture will bring richness to your Sweet Potato & Cranberry Gratin. Once thoroughly mixed, pour half of this delicious blend over the layered ingredients in the baking dish.
Step 6: Build the Second Layer
Now, repeat the layering process by adding the remaining sweet potato slices on top of the first layer. Follow this with the rest of the fresh cranberries, ensuring a hearty balance of flavors throughout. Pour the remaining cream mixture over this second layer, enhancing the creaminess of the dish.
Step 7: Finish with Toppings
Generously sprinkle the shredded Gruyère cheese and breadcrumbs evenly across the top of the gratin. This combination will create a delightful crunchy crust while the cheese melts beautifully during baking. Make sure to cover the entire surface for an even blend of textures.
Step 8: Bake to Perfection
Place the assembled Sweet Potato & Cranberry Gratin in the preheated oven and bake for 30-35 minutes. Look for a golden brown top with bubbling edges as a sign that it’s ready. The kitchen will fill with a warm, inviting aroma as it bakes, making the wait worth it!
Step 9: Cool and Serve
Once baked, remove the gratin from the oven and allow it to cool for a few minutes before serving. This resting time enhances the flavors and allows for easier slicing. Enjoy your delightful Sweet Potato & Cranberry Gratin, perfect for festive gatherings or a comforting family meal!

Expert Tips for Sweet Potato & Cranberry Gratin
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Check Tenderness: Ensure the sweet potatoes are tender before layering; undercooked potatoes can lead to uneven baking and a gritty texture.
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Prep Ahead: Consider assembling the Sweet Potato & Cranberry Gratin a day in advance. Cover tightly and refrigerate to save time and enhance flavors on serving day.
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Watch Your Oven: Baking times may vary, so keep an eye on your gratin; aim for a golden-brown top and bubbling edges for that perfect finish.
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Alternative Toppings: If you’re looking for a gluten-free option, substitute breadcrumbs with crushed nuts or gluten-free crackers to add a delightful crunch.
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Don’t Skip the Rest: Allow the gratin to cool slightly before serving; this helps it set up nicely, making it easier to slice and serve at your holiday gatherings.
Sweet Potato & Cranberry Gratin Variations
Feel free to personalize your Sweet Potato & Cranberry Gratin with these delightful twists and substitutions that promise fresh flavors and exciting textures.
- Dairy-Free: Swap heavy cream for coconut cream to create a luscious vegan version that still offers rich creaminess.
- Sweet Twist: Substitute cranberries with apples for a sweeter and fruitier concoction that brings a different dimension of flavor to the dish. The addition of nutmeg can elevate this sweet experience further.
- Cheesy Option: Use sharp Cheddar instead of Gruyère for a bolder flavor profile, or try feta for a tangy bite that contrasts beautifully with the sweetness of sweet potatoes.
- Crunchy Alternative: Replace breadcrumbs with crushed nuts or gluten-free crackers for a gluten-free topping that adds rich textures and healthy fats. This heartiness will make every bite satisfying.
- Spiced Up: Sprinkle in a pinch of cayenne or chili flakes for a surprising kick of heat that balances the sweetness of the dish beautifully. It’s a small change that makes a notable difference!
- Herb Infusion: Add fresh thyme or rosemary to the cream mixture for an aromatic twist that complements the dish’s flavors and enhances the festive appeal.
- Make it Savory: Introduce leeks or sautéed onions to layer alongside sweet potatoes for an extra savory touch. These additions bring depth and complexity to the classic sweetness.
- Nutty Flavor: Incorporate toasted pecans or walnuts for an earthy crunch that invigorates the dish. This pairing will not only elevate the flavor but also add a touch of elegance to your festive table.
As you explore these variations, let each ingredient add a note of creativity to your sweet symphony of holiday flavors. Don’t hesitate to pair this gratin with other delicious recipes like Baked Potato Soup or Cheesy Mashed Potato for a hearty meal!
Make Ahead Options
These Sweet Potato & Cranberry Gratin are perfect for meal prep enthusiasts! You can assemble the entire gratin up to 24 hours in advance. To ensure quality, cover it tightly with plastic wrap and refrigerate, which keeps the sweet potatoes from browning and preserves the vibrant flavors. Additionally, you can prepare the sweet potato slices and cranberries up to 3 days ahead separately—just keep the sweet potatoes in water to prevent oxidation. When you’re ready to cook, simply pour the cream mixture over the layers, top with cheese and breadcrumbs, and bake straight from the fridge. Your guests will enjoy restaurant-quality results with minimal effort, making your holiday cooking stress-free!
What to Serve with Sweet Potato & Cranberry Gratin
Imagine the cozy gathering around the table, filled with laughter and the warmth of togetherness, all enhanced by these perfect pairings.
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Roasted Turkey: A classic pairing that brings a savory balance to the sweetness of the gratin. The rich flavors of turkey perfectly complement the creamy textures of the dish, making each bite harmonious.
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Cranberry Sauce: Enhance the tartness by adding a side of homemade cranberry sauce. Its bright flavor will echo the cranberries in the gratin, creating a delightful, festive experience.
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Green Bean Almondine: Crunchy green beans and toasted almonds add freshness and a nutty element, contrasting beautifully with the creamy layers of the gratin.
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Herbed Quinoa Salad: This light and zesty salad, sprinkled with fresh herbs, provides a refreshing counterpoint to the rich gratin. It’s a lovely way to add more color and nutritious elements to your feast.
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Mulled Wine: A warm cup of spiced mulled wine can elevate your meal, bringing in seasonal flavors that pair wonderfully with the gratin’s sweet and savory notes.
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Pumpkin Pie: For dessert, a slice of pumpkin pie offers a sweet finish that ties in with the theme of cozy fall flavors, making your holiday meal unforgettable.
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Roasted Brussels Sprouts: Their crisp exteriors and earthy flavors create a delightful contrast to the gratin’s soft texture. Drizzle with balsamic glaze for an extra layer of richness.
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Savory Stuffing: A hearty stuffing infused with herbs can complement the dish nicely, providing a homey and comforting feel to your holiday dinner.
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Maple Glazed Carrots: Sweet, tender carrots glazed in maple syrup will highlight the dish’s sweetness while also adding a pop of color.
These delightful side dishes and drinks transform your meal into a festive experience everyone will cherish.
How to Store and Freeze Sweet Potato & Cranberry Gratin
Fridge: Store leftovers in an airtight container for up to 3 days. Make sure to let the gratin cool to room temperature before sealing to prevent condensation.
Freezer: For longer storage, freeze the gratin in an airtight container for up to 3 months. To maintain quality, consider wrapping it tightly in plastic wrap before placing it in the freezer.
Reheating: To enjoy the triumph of your Sweet Potato & Cranberry Gratin again, reheat in the oven at 350°F (175°C) until warmed through, about 20-25 minutes.
Make-Ahead: This delightful gratin can be assembled a day ahead and stored in the fridge. Just pop it in the oven when you’re ready to bake—perfect for stress-free holiday hosting!

Sweet Potato & Cranberry Gratin Recipe FAQs
What’s the best way to select sweet potatoes?
When choosing sweet potatoes, look for firm ones with smooth skin and no dark spots or wrinkles, which may indicate they’re past their prime. They should feel heavy for their size. For a different flavor, Yukon gold potatoes make an excellent substitution!
How long can I store leftover Sweet Potato & Cranberry Gratin?
Leftovers can be stored in an airtight container in the fridge for up to 3 days. Ensure the gratin has cooled to room temperature before sealing to prevent condensation, which can affect texture and flavor.
Can I freeze Sweet Potato & Cranberry Gratin?
Absolutely! To freeze, first cool the gratin completely. Then, wrap it tightly in plastic wrap and place it in an airtight container or a freezer bag. It can be stored in the freezer for up to 3 months. When ready to enjoy, thaw in the refrigerator overnight and reheat in the oven at 350°F (175°C) until warmed through, about 20-25 minutes.
What can I do if the top of my gratin isn’t browning?
If your gratin isn’t browning as desired, you can place it under the broiler for a minute or two—just keep a close eye to prevent burning! Another key step is ensuring your oven is properly preheated; a quick oven temperature check ensures even cooking and browning.
Is this dish safe for people with dairy allergies?
For those avoiding dairy, you can substitute heavy cream with coconut cream to keep the rich flavor while making it dairy-free. Also, using a dairy-free cheese like a nut-based cheese can create a delicious topping without compromising texture.
Can I prepare the gratin in advance?
Yes, you can! Assemble the Sweet Potato & Cranberry Gratin a day ahead of time, cover it tightly, and refrigerate. This not only saves time but allows the flavors to meld beautifully, making it more satisfying for your holiday table!

Sweet Potato & Cranberry Gratin: Your Must-Have Holiday Side
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C) and grease your baking dish with butter or oil.
- Peel and slice the sweet potatoes into even rounds, about ¼ inch thick. Boil in salted water for 10-15 minutes until tender. Drain and cool.
- In your greased baking dish, layer half of the sweet potato slices, slightly overlapping.
- Sprinkle half of the fresh cranberries over the first layer of sweet potatoes.
- Combine heavy cream, brown sugar, cinnamon, salt, and pepper in a bowl. Whisk and pour half over layered ingredients.
- Repeat the layering process with the remaining sweet potato slices and cranberries, then pour the remaining cream mixture on top.
- Sprinkle Gruyère cheese and breadcrumbs evenly across the top.
- Bake for 30-35 minutes until golden brown on top and bubbly.
- Allow to cool for a few minutes before serving.

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