If you’re looking to elevate your holiday feast, then this Sweet Potato & Cranberry Gratin is just the dish you need. The first time I placed a spoonful of this creamy, vibrant gratin on my plate, it felt like a warm embrace from my kitchen. The sweet potatoes meld beautifully with tart cranberries, creating a flavor symphony that dances on your taste buds while boasting a stunning presentation.
With the holidays around the corner, this recipe stands out as a perfect side dish that can easily impress family and friends without demanding hours in the kitchen. Whether you’re a seasoned chef or a home cook trying to break free from the fast-food cycle, you’ll find that preparing this gratin is a dream come true. Plus, its versatility allows for gluten-free or vegan variations, making it a crowd-pleaser for everyone at the table. Why not bring a little zest and creativity to your next gathering? Let’s get cooking!
Why is Sweet Potato & Cranberry Gratin a Must-Try?
Delightfully Unique: This dish combines the sweetness of sweet potatoes and the tartness of cranberries, creating a beautifully balanced flavor profile.
Versatile Customization: Easily adapt to your dietary needs with vegan and gluten-free alternatives without sacrificing taste.
Effortless Elegance: Perfect for holiday gatherings, this gratin elevates any dinner table with its rich colors and creamy texture.
Time-Saving Convenience: With simple prep and bake instructions, it’s a hassle-free option for busy cooks ready to impress.
Nutrient-Rich Goodness: Packed with vitamins from sweet potatoes and antioxidants from cranberries, it’s as healthy as it is delicious!
For even more inspiring ideas, check out our Make-Ahead Tips to streamline your holiday meal prep.
Sweet Potato & Cranberry Gratin Ingredients
For the Gratin
- Sweet Potatoes – Provides natural sweetness and substance. Substitution: Use a mix of sweet potatoes and regular potatoes for varied flavor and texture.
- Fresh Cranberries – Adds tartness and vibrant color. Substitution: Frozen cranberries can be used; thaw and drain before adding.
- Heavy Cream – Creates a rich, creamy texture. Substitution: Use coconut cream for a vegan option.
- Brown Sugar – Enhances sweetness and adds depth. No specific substitution needed, or can reduce for a less sweet dish.
- Ground Cinnamon – Contributes warmth and spice. Substitution: Nutmeg or allspice can be used for variation.
- Salt – Enhances overall flavor. No substitutions typically needed.
- Black Pepper – Adds a hint of spice. Optional: Can be omitted for a milder flavor.
- Gruyère Cheese – Offers a rich, melty topping. Substitution: Cheddar, mozzarella, or feta for different flavor profiles.
- Breadcrumbs – Provides a crunchy topping. Substitution: Use gluten-free breadcrumbs or crushed nuts for a gluten-free option.
Get ready to create a stunning Sweet Potato & Cranberry Gratin that your loved ones will adore!
How to Make Sweet Potato & Cranberry Gratin
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Preheat Oven: Preheat your oven to 375°F (190°C) so it’s hot and ready for baking, ensuring even cooking of your gratin.
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Prepare Sweet Potatoes: Peel and slice the sweet potatoes into thin rounds. Boil them in a pot of water for 10-15 minutes until they’re just tender.
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Layer Ingredients: Grease a baking dish and layer half of the sliced sweet potatoes on the bottom. Sprinkle half of the fresh cranberries evenly over the sweet potato layer.
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Mix Cream Ingredients: In a mixing bowl, combine heavy cream, brown sugar, ground cinnamon, salt, and black pepper. Pour half of this delicious mixture over the layered sweet potatoes and cranberries.
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Repeat Layers: Add the remaining sweet potato slices, top with the rest of the cranberries, and pour the remaining cream mixture over everything, ensuring all the layers are coated.
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Add Toppings: Generously sprinkle shredded Gruyère cheese and breadcrumbs on top of the gratin to give it a beautifully crispy finish.
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Bake: Place the prepared dish in the oven and bake for 30-35 minutes or until the top is golden brown and bubbly. Let it cool briefly before serving to allow the flavors to meld!
Optional: Drizzle with a balsamic reduction for an extra touch of flavor.
Exact quantities are listed in the recipe card below.

Make Ahead Options
These Sweet Potato & Cranberry Gratin are perfect for busy home cooks looking to save time during festive meals! You can assemble the gratin up to 24 hours in advance by layering the sweet potatoes and cranberries, then covering it tightly with plastic wrap and refrigerating. To maintain quality, make sure to add the cheese and breadcrumb topping just before baking to ensure it stays crispy. When you’re ready to serve, simply preheat your oven and bake the gratin for 30-35 minutes until golden brown and bubbly. With this make-ahead strategy, you can enjoy a delicious side dish without the last-minute rush!
What to Serve with Sweet Potato & Cranberry Gratin?
To create a heartwarming, complete meal, consider delightful pairings that will complement the rich flavors of your gratin.
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Roasted Brussels Sprouts: The nutty flavors and crispy texture of roasted Brussels sprouts provide a delicious contrast to the creamy gratin.
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Herb-Crusted Pork Loin: Tender, juicy pork adds a savory element that perfectly balances the sweetness of the sweet potatoes and cranberries.
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Quinoa Salad with Pomegranate: A refreshing quinoa salad, sprinkled with pomegranate seeds, brings brightness and crunch to your holiday feast. Its tangy flavor harmonizes beautifully with the gratin.
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Cranberry-Orange Chutney: This tart and zesty accompaniment can elevate the dish, enhancing its fruity notes while adding a delightful textural contrast.
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Garlic Bread: Cheesy, buttery garlic bread is a crowd-pleaser that pairs well with rich dishes, offering a satisfying crunch and comfort.
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Mulled Wine: A warming glass of spiced mulled wine can set the festive mood and refresh the palate between bites of creamy gratin.
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Pumpkin Cheesecake: For dessert, a slice of pumpkin cheesecake brings seasonal flavors to your dining table while providing a delicious ending to your meal.
These pairings will not only enhance your Sweet Potato & Cranberry Gratin but also create a cozy dining experience for your friends and family to cherish!
Expert Tips for Sweet Potato & Cranberry Gratin
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Cook Sweet Potatoes Fully: Ensure sweet potatoes are tender before layering, as undercooking can lead to a gritty texture in your gratin.
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Watch the Browning: If the top of your gratin browns too quickly, cover it with foil. Uncover for the last 10 minutes to achieve that perfect golden finish.
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Storage Savvy: Store any leftovers in an airtight container for up to three days. Reheat gently in the oven or microwave to maintain texture.
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Creamy Consistency: For an ultra-creamy gratin, consider blending the cream mixture before pouring it over the layers. This helps distribute flavors evenly.
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Cheese Alternatives: If you’re avoiding dairy, try a plant-based cheese instead of Gruyère for a delicious vegan twist on your Sweet Potato & Cranberry Gratin.
Variations & Substitutions for Sweet Potato & Cranberry Gratin
Feel free to get creative with your dish and explore different options that still maintain the burst of flavors you love!
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Vegan Option: Swap heavy cream for coconut cream and use plant-based cheese to keep it dairy-free while ensuring deliciousness.
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Gluten-Free: Instead of traditional breadcrumbs, opt for crushed nuts or gluten-free breadcrumbs to keep that crispy topping intact.
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Different Cheeses: Experiment with goat cheese for a tangy twist or a strong cheddar for added flavor depth. Each cheese brings its own personality to the gratin!
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Spice It Up: Add a pinch of cayenne or crushed red pepper flakes for a mild kick of heat that complements the sweet and tart profile beautifully.
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Nutty Flavor: Toss in some toasted pecans or walnuts for an additional layer of texture and a delightful crunch contrasting with the creamy layers.
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Fruit Twist: Substitute half the cranberries with sliced apples or pears for a sweet twist that brings fall flavors to life while keeping that tart-sweet balance.
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Herb Infusion: Enhance the flavor by sprinkling fresh herbs like rosemary or thyme into the layers. Their aromatic notes elevate each bite to something extraordinary.
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Sweetness Adjustments: If you prefer less sweetness, reduce the brown sugar or replace it with a sprinkle of cinnamon for a warm flavor without extra sugar.
How to Store and Freeze Sweet Potato & Cranberry Gratin
Fridge: Store any leftovers in an airtight container in the fridge for up to 3 days to maintain freshness and flavor.
Freezer: If freezing, allow the gratin to cool completely, then wrap it tightly in plastic wrap followed by aluminum foil. It can be frozen for up to 3 months.
Reheating: To reheat, thaw overnight in the fridge, then warm in the oven at 350°F (175°C) for about 20-25 minutes until heated through.
Serving Tip: For best taste, enjoy your reheated Sweet Potato & Cranberry Gratin topped with a sprinkle of fresh herbs or a drizzle of balsamic reduction to restore that festive flair.

Sweet Potato & Cranberry Gratin Recipe FAQs
What type of sweet potatoes should I use?
Absolutely! For the best flavor and texture, choose medium-sized sweet potatoes that are firm and free of dark spots or blemishes. If you’d like a bit of variety, mixing sweet potatoes with regular potatoes can also provide a unique taste and texture.
How should I store leftover Sweet Potato & Cranberry Gratin?
Very simply! Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, just pop it back in the oven or microwave until warmed through. Covering it while reheating in the oven can help preserve its creaminess.
Can I freeze Sweet Potato & Cranberry Gratin?
Yes, you can! Just allow the gratin to cool completely first. Wrap it tightly in plastic wrap, followed by a layer of aluminum foil for extra protection. It will keep in the freezer for up to 3 months. When ready to enjoy, thaw it in the fridge overnight and reheat at 350°F (175°C) for about 20-25 minutes.
What if my gratin is too watery?
No worries—this can happen sometimes! If you find your gratin has excess liquid, you can try a few things. First, ensure the sweet potatoes are fully cooked before layering, as undercooked ones can release water during baking. If it’s already too late, consider draining a bit of the liquid gently before serving, or simply add more breadcrumbs or cheese on top to absorb some of that moisture.
Are there any allergy concerns with this recipe?
Yes, definitely! This Sweet Potato & Cranberry Gratin contains dairy and gluten, particularly in the cheese and breadcrumbs. If you’re looking for a vegan option, substitute the heavy cream with coconut cream and the cheese with a dairy-free alternative. Also, make sure to use gluten-free breadcrumbs if needed.
Can I make this recipe vegan? If so, how?
Absolutely, making this gratin vegan is easy! Simply replace the heavy cream with coconut cream, use plant-based cheese in place of Gruyère, and ensure your breadcrumbs are gluten-free. The flavor remains deliciously rich while accommodating vegan dietary preferences!

Sweet Potato & Cranberry Gratin for Cozy Holiday Feasts
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C) so it's hot and ready for baking, ensuring even cooking of your gratin.
- Peel and slice the sweet potatoes into thin rounds. Boil them in a pot of water for 10-15 minutes until they're just tender.
- Grease a baking dish and layer half of the sliced sweet potatoes on the bottom. Sprinkle half of the fresh cranberries evenly over the sweet potato layer.
- In a mixing bowl, combine heavy cream, brown sugar, ground cinnamon, salt, and black pepper. Pour half of this delicious mixture over the layered sweet potatoes and cranberries.
- Add the remaining sweet potato slices, top with the rest of the cranberries, and pour the remaining cream mixture over everything, ensuring all the layers are coated.
- Generously sprinkle shredded Gruyère cheese and breadcrumbs on top of the gratin to give it a beautifully crispy finish.
- Place the prepared dish in the oven and bake for 30-35 minutes or until the top is golden brown and bubbly. Let it cool briefly before serving to allow the flavors to meld!





