Jump to Recipe Print RecipeAs I lifted the lid on my oven, the warm, inviting aroma of baking sweet potatoes and cranberries wrapped around me like a cozy blanket. This Sweet Potato & Cranberry Gratin is not just another side dish; it’s a celebration of flavors that perfectly balances sweetness with tartness, making it an ideal companion for festive feasts. What I love most is that it comes together in under an hour, so even during the busiest holiday gatherings, I can create something that looks stunning and tastes divine. Plus, it’s a versatile dish, easily accommodating both vegetarian and vegan diets with a few simple swaps. Are you ready to impress your loved ones with this delightful gratin? Let’s dive into the recipe! Why is This Gratin a Must-Try? Delightful Combination: The fusion of sweet potatoes and tart cranberries creates a flavor profile that’s both surprising and delicious. Festive Appeal: Perfect for holiday gatherings, this dish is eye-catching and brings that seasonal warmth to any table. Quick Preparation: With only under an hour needed from prep to plate, you can serve a show-stopping side without stress. Versatile Options: Easily transform it into a vegan dish with coconut cream and plant-based cheese, so everyone can enjoy it. Crowd-Pleaser: Impress your friends and family who are tired of fast food with this homemade gem; they’ll be requesting it at every holiday meal! For additional inspiration, check out our Crock Pot Ray for a hearty pairing or our delightful Sausage Sweet Potatoes for a complete menu! Sweet Potato & Cranberry Gratin Ingredients For the Gratin • Sweet Potatoes – Provide natural sweetness and a creamy texture; no direct substitute available, but butternut squash works well for a different flavor. • Fresh Cranberries – Add tartness and a burst of flavor; frozen cranberries are also acceptable; just thaw and drain before use. • Heavy Cream – Binds ingredients and adds richness; substitute with coconut cream for a vegan version. • Brown Sugar – Enhances sweetness and caramelization; adjust based on your taste preference. • Cinnamon – Provides warmth and depth of flavor; nutmeg can be used for a different spice profile. • Salt and Pepper – Essential for seasoning; be sure to adjust to taste! • Gruyère Cheese (or substitute) – Adds a creamy, melty texture; cheddar for sharper flavor, mozzarella for mildness, or feta for tanginess works too. • Breadcrumbs – Create a crispy topping; use gluten-free crackers or ground nuts to make this dish gluten-free. Embrace the charm of this Sweet Potato & Cranberry Gratin, and watch as it transforms your holiday gatherings into heartfelt celebrations! 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 will ensure your Sweet Potato & Cranberry Gratin bakes evenly and achieves that golden, bubbling finish. While the oven heats, gather all your ingredients and equipment, including a large pot for boiling, a baking dish, and measuring cups. Step 2: Boil the Sweet Potatoes Peel and slice the sweet potatoes into uniform rounds. Place them in a large pot, covering them with water. Bring the water to a boil and let the sweet potatoes cook for about 10 to 15 minutes, or until they are tender enough to pierce with a fork. Once done, drain the sweet potatoes and set them aside to cool slightly. Step 3: Layer the Sweet Potatoes Grease your baking dish with butter or cooking spray to prevent sticking. Start layering half of the cooked sweet potato slices in the bottom of the dish, slightly overlapping them for an attractive presentation. This will create a sturdy base for your Sweet Potato & Cranberry Gratin that holds together nicely. Step 4: Add Fresh Cranberries Sprinkle half of the fresh cranberries over the first layer of sweet potatoes. The vibrant color of the cranberries will complement the warm orange of the sweet potatoes, providing a visually appealing contrast as well as a burst of tart flavor that elevates the dish beautifully. Step 5: Prepare the Cream Mixture In a separate bowl, whisk together the heavy cream, brown sugar, cinnamon, and a pinch of salt and pepper. This mixture will bind the layers together while adding richness and depth to the flavor profile of your Sweet Potato & Cranberry Gratin. Pour half of this creamy blend over the layered ingredients, ensuring even coverage. Step 6: Repeat the Layers Add the remaining sweet potato slices on top of the first layer, creating another beautiful layer of flavor and texture. Follow this by adding the remaining cranberries, allowing their sweet-tart flavor to permeate the dish. Pour the rest of the cream mixture over the top, making sure every piece is coated for maximum creaminess. Step 7: Top with Cheese and Breadcrumbs Generously sprinkle shredded Gruyère cheese over the top of your gratin, followed by an even layer of breadcrumbs. This will enhance the dish with a crispy, golden crust as it bakes. The cheese will melt and meld beautifully with the sweet potatoes and cranberries below, adding that comforting finish to your Sweet Potato & Cranberry Gratin. Step 8: Bake to Perfection Place the baking dish in the preheated oven and bake for 30 to 35 minutes, or until the top is golden brown and bubbly. You’ll know it’s done when the edges are sizzling, and the cheese has melted beautifully. Keep an eye on it; if the top browns too quickly, cover with foil to prevent burning. Step 9: Cool and Serve Once your Sweet Potato & Cranberry Gratin is out of the oven, allow it to cool for a few minutes before serving. This resting time helps the flavors meld and makes for easier cutting when serving. Enjoy the warmth and heartiness of this delicious festive side dish that will delight your family and friends! Make Ahead Options These Sweet Potato & Cranberry Gratin are perfect for meal prep enthusiasts! You can assemble the entire dish up to 24 hours in advance, which is a real time-saver for busy weeknights or holiday gatherings. Simply follow the instructions until the layering is complete, cover tightly with plastic wrap or foil, and refrigerate. To maintain the gratin’s quality, avoid adding breadcrumbs until you’re ready to bake, as this will keep them crisp. When you’re ready to serve, just preheat your oven and bake the gratin as directed, adding the breadcrumbs and cheese in the last step. You’ll end up with a dish that is just as delicious as if it were freshly prepared! Expert Tips for Sweet Potato & Cranberry Gratin Tender Sweet Potatoes: Ensure they are soft before layering to avoid any undercooked bites that could spoil the dish. Layering Technique: Overlap the sweet potato slices slightly to create an appealing presentation and to help the layers hold together. Baking Time: Keep an eye on the gratin while it bakes; if the top browns too quickly, cover with foil to prevent burning. Creamy Consistency: Pour the cream mixture evenly over the layers to ensure all components are beautifully coated, providing rich flavor in every bite. Make-Ahead Magic: Prepare the Sweet Potato & Cranberry Gratin a day in advance, cover tightly, and refrigerate; just pop it in the oven when ready to serve! What to Serve with Sweet Potato & Cranberry Gratin Creating a full meal around the cozy warmth of sweet potatoes and tart cranberries can be delightful and fulfilling. Maple-Glazed Brussels Sprouts: Their slight bitterness and sweetness balance the rich flavors of the gratin, adding a crunchy texture. They’re a lovely contrast to the creamy dish, making each bite a harmonic mix. Herbed Quinoa Salad: This light and refreshing salad adds a nutty flavor and chewy texture that pairs beautifully with the gratin. Tossed with fresh herbs, it complements the sweet and savory notes perfectly. Garlic Green Beans: Crisp-tender green beans sautéed with garlic bring a bright burst of flavor and vibrant color to your holiday table. Their crunch contrasts well with the smooth gratin, ensuring an enjoyable texture experience. Cranberry Orange Relish: This zesty side creates a vibrant pop of acidity that cuts through the richness of the gratin. The bright flavors provide a festive touch and can invigorate every bite. Dinner Rolls with Herb Butter: Soft, fluffy rolls are perfect for mopping up the creamy goodness of the gratin. The herbed butter adds an aromatic dimension, making your meal feel extra special. Apple Cider: A warm cup of apple cider can elevate your meal, providing cozy, spiced notes that resonate beautifully with the flavors in the gratin. Its sweetness melds well with the tartness of the cranberries. Pumpkin Pie: For dessert, this classic holiday favorite rounds out the meal with a comforting slice of spiced pumpkin goodness, ensuring a balanced sweetness from beginning to end. Craft your perfect holiday meal while enjoying the warmth and comfort of this delightful Sweet Potato & Cranberry Gratin! How to Store and Freeze Sweet Potato & Cranberry Gratin Fridge: Leftover Sweet Potato & Cranberry Gratin can be stored in an airtight container for up to 3 days. Make sure to let it cool completely before sealing to avoid condensation. Freezer: For longer storage, you can freeze the gratin for up to 2 months. Wrap it tightly in plastic wrap and then in aluminum foil to prevent freezer burn. Reheating: When ready to enjoy, thaw in the fridge overnight. Reheat in the oven at 350°F (175°C) until warmed through, about 20-25 minutes, for the best texture. Room Temperature: If serving at a gathering, keep the gratin out for no more than 2 hours to ensure food safety and freshness. Sweet Potato & Cranberry Gratin Variations Customize this Sweet Potato & Cranberry Gratin to perfectly suit your taste and dietary needs for a truly delightful dish! Vegan: Replace heavy cream with coconut cream and use plant-based cheese to keep it creamy without dairy. Gluten-Free: Swap breadcrumbs for crushed gluten-free crackers or ground nuts, giving a nutty crunch in every bite. Sweet Spice: Add a dash of nutmeg in place of cinnamon for a warm twist that complements the sweet potatoes beautifully. Herb Infusion: Sprinkle fresh thyme or rosemary between layers for a fragrant and savory boost that lifts the flavors. Cheesy Alternatives: Experiment with cheeses like sharp cheddar for a bolder flavor, or mozzarella for a mild and gooey experience. Fruity Twist: Add in diced apples or pears for a delightful sweet and tart addition that enhances the festive nature of this dish. Nutty Crunch: Top with slivered almonds or pecans instead of breadcrumbs for an added crunch and nutty flavor that contrasts with the creamy layers. Heat It Up: Incorporate a pinch of cayenne pepper or red pepper flakes for a subtle heat that balances the sweetness of the dish. Remember to check out our delightful Kielbasa Potato Soup for a warming meal idea or our Crock Pot Ray for a delicious main dish to accompany your gratin! Sweet Potato & Cranberry Gratin Recipe FAQs How do I select ripe sweet potatoes? Absolutely! When choosing sweet potatoes, look for ones that are smooth and firm without any dark spots or blemishes. A slightly sweet aroma and a vibrant color will indicate freshness. I often pick medium-sized potatoes, as they tend to be sweeter and more flavorful. How can I store leftover Sweet Potato & Cranberry Gratin? Leftover Sweet Potato & Cranberry Gratin can be kept in an airtight container in the fridge for up to 3 days. Make sure it’s completely cooled before sealing to prevent condensation and sogginess. Reheat it in the oven for that freshly-baked texture! Can I freeze this gratin for later use? Yes, you can freeze your Sweet Potato & Cranberry Gratin! Wrap it tightly in plastic wrap and cover with aluminum foil to avoid freezer burn, and it can be stored for up to 2 months. When you’re ready to enjoy it, simply thaw overnight in the fridge and reheat in the oven at 350°F (175°C) for about 20-25 minutes. What should I do if my gratin is too watery? If you find your Sweet Potato & Cranberry Gratin is too watery, try reducing the amount of cream or cooking the sweet potatoes a bit longer to ensure they are drier before layering. Additionally, you can increase the breadcrumbs on top to help absorb excess moisture during baking. Is this recipe suitable for those with dairy allergies? Yes, with some adjustments! For a dairy-free option, use coconut cream instead of heavy cream and opt for a plant-based cheese if desired. This way, the Sweet Potato & Cranberry Gratin can be enjoyed by everyone at the table, regardless of dietary preferences! Can I use other fruits in this gratin? Definitely! While cranberries provide a distinctive tartness, you could substitute them with sliced apples or pears for a sweeter profile. Just be sure to adjust the sweetness level if you incorporate these fruits to maintain that delightful balance in the dish. Sweet Potato & Cranberry Gratin: A Cozy Festive Delight This Sweet Potato & Cranberry Gratin is a delightful balance of sweetness and tartness, perfect for festive feasts. Print Recipe Pin Recipe Prep Time 15 minutes minsCook Time 35 minutes minsTotal Time 50 minutes mins Servings: 6 servingsCourse: CasseroleCuisine: AmericanCalories: 350 Ingredients Equipment Method Nutrition Notes Ingredients 1x2x3x? For the Gratin3 lbs Sweet Potatoes Provide natural sweetness and creamy texture; can substitute with butternut squash.2 cups Fresh Cranberries Frozen cranberries can be used if thawed and drained.1 cup Heavy Cream Substitute with coconut cream for a vegan version.1/4 cup Brown Sugar Adjust based on taste preference.1 tsp Cinnamon Nutmeg can be used as an alternative.to taste Saltto taste Pepper1 cup Gruyère Cheese Substitutes include cheddar, mozzarella, or feta.1 cup Breadcrumbs Use gluten-free options for a gluten-free dish. Equipment Large Potbaking dishMeasuring cupsMixing bowl Method Step-by-Step InstructionsPreheat your oven to 375°F (190°C).Peel and slice the sweet potatoes into uniform rounds. Boil in a large pot for 10 to 15 minutes until tender. Drain and cool slightly.Grease the baking dish and layer half of the sweet potato slices at the bottom.Sprinkle half of the cranberries over the first layer of sweet potatoes.In a bowl, whisk together heavy cream, brown sugar, cinnamon, salt, and pepper. Pour half over the layered ingredients.Add remaining sweet potato slices and cranberries. Pour the rest of the cream mixture over top.Top with shredded Gruyère cheese and breadcrumbs.Bake for 30 to 35 minutes until golden brown and bubbly.Allow to cool for a few minutes before serving. Nutrition Serving: 1servingCalories: 350kcalCarbohydrates: 45gProtein: 6gFat: 15gSaturated Fat: 8gPolyunsaturated Fat: 1gMonounsaturated Fat: 5gCholesterol: 30mgSodium: 250mgPotassium: 650mgFiber: 5gSugar: 10gVitamin A: 12000IUVitamin C: 15mgCalcium: 150mgIron: 1.5mg NotesFor a make-ahead option, prepare the gratin a day in advance and refrigerate before baking. Tried this recipe?Let us know how it was!