The aroma of roasted sweet potatoes mingled with tart cranberries fills the air, instantly transporting me to festive gatherings of the past. This Sweet Potato & Cranberry Gratin is a delightful twist on traditional holiday fare, designed to elevate your meals with minimal fuss. Not only is it a showstopper that’ll impress your guests, but it also boasts a quick prep time, making it perfect for those busy days when time is of the essence. Plus, with easy adaptations for vegan and gluten-free diets, everyone can join in on the heartwarming experience. Ready to discover how this festive comfort dish can become the highlight of your holiday table? Let’s dive into the layers of flavor that await!

Why is This Gratin a Must-Try?
Unmatched Flavor: The pairing of sweet potatoes and tart cranberries creates a delightful contrast that dances on your palate.
Simple Preparation: With just a few steps, you can whip up this dish in no time, perfect for the busy cook.
Beautiful Presentation: The golden-crusted topping is not only delicious but also visually stunning, making it a striking centerpiece.
Dietary Flexibility: Easily adaptable for vegan and gluten-free diets, this recipe ensures everyone can enjoy a slice of comfort.
Nutritional Benefits: Packed with vitamins A and C, this gratin caters to both taste and health, uplifting your holiday meals like no other. For more innovative comfort foods, check out these Sweet Coconut Cream Pancakes or Meatloaf Mashed Potatoes.
Sweet Potato & Cranberry Gratin Ingredients
This Sweet Potato & Cranberry Gratin is easy to whip up with these key ingredients!
For the Gratin
• Sweet Potatoes – Provides natural sweetness and body; substitute with butternut squash for a twist in flavor.
• Fresh Cranberries – Adds tartness and vibrant color; frozen cranberries can be used if thawed and drained.
• Heavy Cream – Contributes richness; swap for coconut cream to make it vegan.
• Brown Sugar – Enhances sweetness and balances flavors; maple syrup serves as a great alternative.
• Ground Cinnamon – Infuses warmth and depth; omit for a more neutral taste.
• Salt and Pepper – Elevates overall flavor; adjust to your personal preference.
• Gruyère Cheese – Provides creaminess and a golden finish; alternate options include cheddar, mozzarella, or feta cheese.
• Breadcrumbs – Adds a delightful crunch on top; use gluten-free breadcrumbs or crushed gluten-free crackers for a gluten-free version.
Enjoy crafting this beautiful dish that will bring warmth and joy to your holiday table!
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 a perfectly cooked Sweet Potato & Cranberry Gratin that will develop a lovely golden-brown crust. While the oven is heating up, you can prepare your sweet potatoes.
Step 2: Prepare the Sweet Potatoes
Peel the sweet potatoes and slice them into thin rounds. In a large pot, bring water to a boil, then carefully add the sweet potato slices. Cook for 10-15 minutes until they are tender but not mushy; they should be easily pierced with a fork. Drain the sweet potatoes and set them aside.
Step 3: Layer the First Ingredients
Grease a baking dish with a little olive oil or butter. Arrange half of the sweet potato slices in the bottom of the dish, creating an even layer. Make sure the slices are slightly overlapping for better texture in your Sweet Potato & Cranberry Gratin.
Step 4: Add Cranberries
Sprinkle half of the fresh or thawed cranberries evenly over the layered sweet potatoes. The vibrant color and tart flavor of the cranberries will beautifully contrast with the sweetness of the potatoes, enhancing the overall taste of the gratin.
Step 5: Mix the Cream Mixture
In a separate bowl, combine the heavy cream, brown sugar, ground cinnamon, salt, and pepper. Whisk until well blended. Pour half of this creamy mixture evenly over the first layer of sweet potatoes and cranberries, ensuring every bit is coated for rich flavor.
Step 6: Repeat Layering
Now, repeat the layering process by adding the remaining sweet potato slices atop the cranberries. Follow this with the rest of the cranberries, creating a second layer that mirrors the first. This will maximize the sweetness and tartness in your Sweet Potato & Cranberry Gratin.
Step 7: Top with Cream Mixture
Pour the remaining cream mixture over the top layer, allowing it to seep through the sweet potatoes and cranberries. This will add a wonderful creaminess throughout the dish. Make sure to cover everything to enhance the flavors during baking.
Step 8: Add Cheese and Breadcrumbs
Sprinkle shredded Gruyère cheese generously over the top of the gratin, followed by an even layer of breadcrumbs for added crunch. The cheese will melt into a creamy layer while the breadcrumbs turn golden and crispy, elevating the texture of your Sweet Potato & Cranberry Gratin.
Step 9: Bake the Gratin
Place the baking dish in the preheated oven and bake for 30-35 minutes. Keep an eye on the gratin as it cooks; it should be bubbling and golden-brown on top when done. This delightful combination creates a mouthwatering aroma that fills your kitchen.
Step 10: Let it Cool
Once baked, carefully remove the Sweet Potato & Cranberry Gratin from the oven. Allow it to rest for about 5-10 minutes before serving. This brief cooling period helps to firm up the layers and makes for easier slicing, ensuring everyone gets a perfect portion.

What to Serve with Sweet Potato & Cranberry Gratin
The aroma of this rich and creamy dish invites a cozy gathering, making it the perfect centerpiece for your holiday table.
- Herbed Roasted Turkey: The savory richness of turkey pairs beautifully with the sweet and tart flavors of the gratin, creating a harmonious balance on the plate.
- Garlic Green Beans: Crisp-tender green beans offer a fresh, vibrant contrast that complements the creamy layers of the gratin, adding a crunch that’s oh-so-satisfying.
- Savory Stuffing: A classic side, stuffing brings its own depth of flavor while offering a hearty texture that works well alongside the smoothness of the gratin.
- Cranberry Sauce: This fruity sauce echoes the cranberry in the gratin, enhancing its flavors and adding a tangy burst that brings it all together.
- Honey-Glazed Carrots: Sweet, buttery carrots seasoned with honey provide a lovely sweetness to balance the savory notes, making each bite delightful.
- Apple Cider: Serve chilled or warm, this refreshing drink complements the earthy sweetness of the sweet potatoes, making every sip a delight.
- Pumpkin Pie: End your holiday meal on a sweet note with this classic dessert, its spices beautifully mirroring the cinnamon in the gratin.
- Mulled Wine: The warm, spiced flavors of mulled wine create a comforting drink that pairs perfectly with the festive spirit of your meal.
- Pecan Pie: A touch of nuttiness and sweetness makes pecan pie the ultimate dessert to contrast with the savory notes of your Sweet Potato & Cranberry Gratin.
Sweet Potato & Cranberry Gratin Variations
Feel free to tweak this Sweet Potato & Cranberry Gratin recipe to suit your taste and dietary needs; it’s all about creating a dish that resonates with you!
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Vegan-Friendly: Substitute heavy cream with coconut cream and skip the cheese for a delightful vegan version. You’ll still enjoy that creamy goodness without any dairy.
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Gluten-Free: Use gluten-free breadcrumbs or crushed gluten-free crackers as a topping to keep this dish accessible for those with gluten sensitivities. This small change ensures everyone can enjoy the gratin at your holiday gatherings.
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Flavor Twist: Add a hint of rosemary or thyme between layers for an aromatic touch that elevates the dish’s complexity. These herbs infuse the gratin with earthy undertones that perfectly complement the sweetness of the potatoes.
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Nutty Crunch: Sprinkle chopped pecans or walnuts on top for added texture and flavor. Nuts contribute a rich, toasty element that contrasts wonderfully with the soft layers of sweet potatoes and cranberries.
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Cheese Alternatives: If Gruyère isn’t your favorite, try using cheddar or feta cheese instead. Each cheese brings a unique flavor, allowing you to customize the dish even further.
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Sweetener Swap: Replace brown sugar with pure maple syrup for a more natural sweetness that pairs beautifully with the sweet potatoes and tart cranberries. Plus, it adds a lovely depth of flavor!
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Heat it Up: For those who like a little spice, consider adding a pinch of cayenne or red pepper flakes to the cream mixture. This will create an intriguing flavor profile that’s sure to surprise and delight your taste buds.
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Mixed Berries: Substitute some of the cranberries with fresh blueberries or raspberries to introduce a new layer of fruity flavor. The berries create a colorful presentation that’s just as delicious as it is beautiful.
For even more ideas and mouthwatering creations, you’ll love trying my Coconut Shrimp Sweet or these delightful Sweet Air Fryer Churro Bites. Enjoy experimenting and making this recipe your own!
Make Ahead Options
These Sweet Potato & Cranberry Gratin preparations are perfect for busy cooks looking to save time during festive occasions! You can assemble the entire dish up to 24 hours in advance. Simply prepare the layers of sweet potatoes and cranberries, and pour on the creamy mixture, then cover the dish tightly with plastic wrap or aluminum foil to keep it fresh while refrigerating. When you’re ready to serve, simply preheat your oven and bake as directed for 30-35 minutes until golden brown and bubbly. This method ensures that your gratin retains its delicious flavors and textures, allowing you to enjoy a comforting side without the last-minute stress!
Expert Tips for Sweet Potato & Cranberry Gratin
• Prepare Ahead: Assemble your Sweet Potato & Cranberry Gratin a day before, cover, and refrigerate. This not only saves time but also allows the flavors to meld beautifully.
• Consistent Cooking: Ensure sweet potatoes are cut into uniform slices before boiling. This guarantees that they cook evenly, making for perfect layering and baking.
• Watch the Oven: Check on the gratin while it’s baking to prevent over-browning. If the top catches too quickly, cover it loosely with foil until fully cooked.
• Substitution Savvy: For a vegan option, simply replace heavy cream with coconut cream and omit cheese. This ensures everyone at the table can enjoy the dish!
• Layering for Flavor: Don’t skip the cinnamon in your cream mixture—it adds depth and enhances the sweetness of both sweet potatoes and cranberries.
• Crunch Factor: When using breadcrumbs, consider toasting them lightly before sprinkling on top for an extra crispy finish that elevates your Sweet Potato & Cranberry Gratin.
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 completely before sealing to maintain its texture.
Freezer: If you want to keep your Sweet Potato & Cranberry Gratin longer, freeze it for up to 2 months. Cover it tightly with plastic wrap and then foil to prevent freezer burn.
Thawing: When you’re ready to enjoy the gratin, thaw it in the fridge overnight. This helps it warm evenly during reheating.
Reheating: Reheat in the oven at 350°F (175°C) until heated through, about 20-25 minutes. Add a splash of cream to revive the dish’s creaminess if it seems dry.

Sweet Potato & Cranberry Gratin Recipe FAQs
How do I select ripe sweet potatoes?
Absolutely! Look for sweet potatoes that are firm and smooth, without any dark spots or blemishes. Smaller ones tend to be sweeter, while larger ones can be starchier. If you find them with dark spots all over, skip those as they’re likely past their prime.
How should I store my Sweet Potato & Cranberry Gratin?
Very! After enjoying your dish, let it cool completely, then transfer leftovers to an airtight container. It can be stored in the fridge for up to 3 days. Make sure it’s sealed well to maintain that delightful texture!
Can I freeze Sweet Potato & Cranberry Gratin?
Absolutely! To freeze, first let the gratin cool, then cover it tightly with plastic wrap and aluminum foil to prevent freezer burn. It can last up to 2 months in the freezer. When you’re ready to enjoy it, thaw it overnight in the fridge before reheating.
What if my gratin turns out too watery?
No worries! If you find your Sweet Potato & Cranberry Gratin is watery, it might be due to excess moisture in the sweet potatoes or cranberries. To avoid this, make sure you don’t overboil your sweet potatoes. If you encounter this issue after baking, you can place the gratin back in the oven uncovered for a few extra minutes to allow the liquid to evaporate and boost that gorgeous golden crust.
Are there any dietary considerations for this recipe?
Very! This recipe can easily accommodate vegan and gluten-free diets with simple substitutions—use coconut cream instead of heavy cream and opt for gluten-free breadcrumbs. Always check for allergies when selecting ingredients, especially for those who might have sensitivities to dairy or gluten.
How can I keep the gratin from browning too quickly?
Certainly! If you notice the top of your Sweet Potato & Cranberry Gratin browning too fast while baking, simply cover it loosely with foil. This will protect your beautiful crust while the inside finishes cooking to perfection!

Sweet Potato & Cranberry Gratin: Comfort Food for Every Table
Ingredients
Equipment
Method
- Preheat the oven to 375°F (190°C).
- Peel the sweet potatoes and slice them into thin rounds. Boil in water for 10-15 minutes until tender. Drain and set aside.
- Grease a baking dish and arrange half of the sweet potato slices in the bottom.
- Sprinkle half of the cranberries over the sweet potato layer.
- In a bowl, mix heavy cream, brown sugar, cinnamon, salt, and pepper. Pour half over the first layer.
- Layer the remaining sweet potatoes and cranberries, then pour the rest of the cream mixture on top.
- Sprinkle the cheese and breadcrumbs on top.
- Bake for 30-35 minutes until bubbling and golden-brown.
- Let cool for 5-10 minutes before serving.

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