As the leaves begin to turn and the air grows crisp, the craving for comforting, hearty meals strikes. One dish that beautifully embodies the flavors of fall is Sweet Potato & Cranberry Gratin. This tantalizing recipe combines the earthy sweetness of sweet potatoes with the tartness of cranberries, all enveloped in a creamy, cheesy goodness. Not only is it a feast for the senses, but it also brings warmth and nutrition to your table. In this article, we’ll dive deep into this delightful gratin, exploring its ingredients, preparation methods, variations, and its nutritional benefits. Ready to indulge? Let’s jump right in!
Understanding Sweet Potato & Cranberry Gratin
Sweet potato gratin is a sophisticated twist on a classic dish, bringing a delightful contrast of flavors and textures. This recipe is a fantastic way to showcase seasonal ingredients while providing comfort to your dinner table. The combination of flavors creates an unforgettable experience, perfect for gatherings or simple family meals.
Why You’ll Love It
- Flavor Harmony: The natural sweetness of sweet potatoes is perfectly complemented by the tangy cranberries.
- Nutritional Powerhouse: Sweet potatoes are rich in fiber, vitamins, and minerals, while cranberries provide antioxidants.
- Simple Preparation: Despite its gourmet appeal, preparing this gratin is straightforward and doesn’t require any fancy techniques.
- Versatile: This dish can serve as a comforting side or a highlight during the holiday season.

Sweet Potato & Cranberry Gratin
- Total Time: 90 minutes
- Yield: 6–8 servings 1x
- Diet: Vegetarian
Description
A luxurious comfort food dish combining earthy sweet potatoes and tart cranberries in a creamy, cheesy sauce.
Ingredients
- 4 medium sweet potatoes, peeled and thinly sliced
- 1 cup fresh or dried cranberries
- 1½ cups heavy cream
- 1 cup whole milk
- 1½ cups grated cheese (cheddar, Gruyère, or a blend)
- 2 cloves garlic, minced
- 1 tsp fresh thyme (or ½ tsp dried thyme)
- ¼ tsp nutmeg
- Salt and pepper to taste
- Butter for greasing the baking dish
Instructions
- Preheat oven to 375°F (190°C).
- Grease a 9×13 inch baking dish with butter.
- Layer sweet potato slices, cranberries, and cheese in the dish.
- In a bowl, mix cream, milk, garlic, thyme, nutmeg, salt, and pepper. Pour over the layers.
- Cover with foil and bake for 45 minutes. Remove foil and bake an additional 20-25 minutes.
- Let it cool for 10 minutes before serving. Enjoy!
Notes
For extra texture, consider topping with breadcrumbs or nuts. Allow to cool before slicing for clean cuts.
- Prep Time: 20 minutes
- Cook Time: 70 minutes
- Category: Side Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 360
- Sugar: 8g
- Sodium: 450mg
- Fat: 17g
- Saturated Fat: 10g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 47g
- Fiber: 5g
- Protein: 9g
- Cholesterol: 35mg
Keywords: gratin, sweet potato, cranberry, comfort food, fall recipes, side dish
Ingredient Breakdown: What Makes This Dish Special
Understanding the components of our Sweet Potato & Cranberry Gratin is essential to appreciate its flavor and nutritional profile.
Sweet Potatoes
Sweet potatoes are the star of the show. Rich in beta-carotene, they play a significant role in your immune health and skin health. Additionally, their high fiber content supports digestive health. When baked, their natural sweetness deepens, making them the perfect base for any gratin.
Cranberries
Cranberries add a unique tart flavor to the dish, balancing the sweetness of the potatoes. They are a good source of vitamin C, vitamin E, and dietary fiber. Plus, they’re known for their antioxidant properties, which help reduce inflammation and support overall health.
Cheese
Adding a layer of cheese not only enhances the taste but also gives the gratin a creamy texture that binds the ingredients together. You can choose from various cheeses, such as sharp cheddar for a kick, or Gruyère for a smooth, nutty flavor.
Cream and Milk
The cream creates a luscious sauce that soaks into the vegetables, making each bite incredibly delicious. Whole milk or heavy cream can be used, depending on how indulgent you wish to be.
Spices and Herbs
Spices like nutmeg and black pepper can add warmth and depth. Fresh herbs such as thyme or rosemary can bring an aromatic flair to the dish.
Step-By-Step Recipe: Creating Your Sweet Potato & Cranberry Gratin
Let’s get our hands ready to cook! Here’s a detailed step-by-step guide to crafting this beautiful gratin.
Ingredients
- 4 medium sweet potatoes, peeled and thinly sliced
- 1 cup fresh or dried cranberries
- 1½ cups heavy cream
- 1 cup whole milk
- 1 ½ cups grated cheese (cheddar, Gruyère, or a blend)
- 2 cloves garlic, minced
- 1 tsp fresh thyme (or ½ tsp dried thyme)
- ¼ tsp nutmeg
- Salt and pepper to taste
- Butter for greasing the baking dish
Method
Preheat the Oven: Heat your oven to 375°F (190°C). This temperature allows the sweet potatoes to cook evenly while developing a golden-brown crust.
Prepare the Dish: Grease a 9×13 inch baking dish with butter to prevent sticking and make cleanup easier.
Layer the Ingredients:
- Start by arranging a layer of sweet potato slices at the bottom of the prepared baking dish.
- Sprinkle a handful of cranberries over the potatoes, then a sprinkle of cheese.
- Repeat these layers until all ingredients are used, finishing with a layer of sweet potatoes topped with cheese.
Make the Cream Mixture: In a bowl, whisk together heavy cream, whole milk, minced garlic, thyme, nutmeg, salt, and pepper. Pour this mixture evenly over the layered gratin, allowing it to soak through.
Bake: Cover the dish with aluminum foil and bake for 45 minutes. Then remove the foil and continue baking for an additional 20-25 minutes, or until the top is golden brown and the sweet potatoes are tender when pierced with a fork.
Serve: Let it cool for about 10 minutes before slicing. This dish can be served warm as a side or even as the main attraction.
Pro Tips: Cooking Insights to Enhance Flavor
Thickness of Slices: When slicing sweet potatoes, aim for even thickness (about ⅛ inch). This ensures even cooking and texture.
Experiment with Cheeses: Don’t hesitate to mix different cheeses. A blend of sharp cheddar and creamy Brie can create a symphony of flavors.
Pre-Cook Your Potatoes: For a creamier texture, consider parboiling the sweet potatoes for 5-7 minutes before assembly. This helps them cook through faster.
Add Crunch: Consider topping the gratin with breadcrumbs or crushed nuts for added texture.
Fresh Herbs: Fresh herbs play a key role in brightening the dish; don’t skip or skimp on them!
Common Mistakes to Avoid
Overcrowding the Dish: Layering too many ingredients can lead to uneven cooking. Stick to the recipe’s proportions for best results.
Skipping the Resting Time: Allowing the gratin to rest after baking makes it easier to slice and enhances the overall flavor.
Not Preheating the Oven: Ensure your oven is fully preheated to avoid undercooked sweet potatoes.
Variations and Swaps to Personalize Your Gratin
One of the greatest joys of cooking is the ability to tailor a recipe to your taste. Here are some ideas to make this dish your own:
- Add Vegetables: Integrate sautéed onions or spinach for added flavor and nutrition.
- Utilize Mashed Sweet Potatoes: For a different texture, use a layer of mashed sweet potatoes combined with the cream mixture.
- Try Other Fruits: Replace cranberries with apples or pears for a sweeter twist.
- Change the Cream: Swap the heavy cream for a dairy-free option like coconut cream for a different flavor profile.
Storage and Reheating Tips for Your Gratin
Storage
After cooking, allow the gratin to cool completely. Store leftovers in an airtight container in the refrigerator for up to 5 days. This makes it perfect for meal prep or as a side dish throughout the week.
Reheating
To retain the creamy texture, reheat in the oven at 350°F (175°C) for about 20 minutes or until warmed throughout. You can cover it with foil to prevent browning if needed. For a quicker option, you can also microwave individual portions.
Nutrition Insights
Many people seek out nutritious options. Sweet potatoes are known for their low glycemic index, making them a great choice for those watching their blood sugar. They are also rich in potassium, which is vital for heart health.
Cranberries are low in calories and high in fiber, supporting digestive health and potentially reducing the risk of UTIs. The combination of creamy cheese and milk contributes calcium and protein, essential for bone health.
FAQs About Sweet Potato & Cranberry Gratin
Q: Can I make this gratin ahead of time?
A: Yes! You can prep the dish a day in advance. Assemble it, cover it tightly, and store it in the refrigerator. Bake it just before serving.
Q: What can I serve with Sweet Potato & Cranberry Gratin?
A: This dish pairs well with roasted meats, particularly turkey or chicken. It can also complement a hearty salad for a lighter meal.
Q: Can I freeze Sweet Potato & Cranberry Gratin?
A: Yes, but freezing can affect the texture. If you decide to freeze it, make sure it’s completely cool before wrapping it tightly and freezing. Reheat thoroughly before serving.
Q: What’s the best type of dish to bake this gratin in?
A: A glass or ceramic baking dish works best, as they distribute heat evenly and allow for easy monitoring of browning.
Final Thoughts: Time to Get Cooking
In conclusion, Sweet Potato & Cranberry Gratin is more than just a dish; it’s a vibrant celebration of flavor and nourishment that resonates with the essence of fall. Whether you’re preparing it for a holiday gathering or a cozy family dinner, this gratin is destined to be a favorite. Challenge yourself to give it a try, and immerse your senses in every delicious layer. Don’t forget to save this recipe for later or share it with fellow food lovers. Your kitchen deserves a delightful exploration of flavors!
For more comforting recipes, check out our Roasted Vegetables, or try our delicious Cranberry Sauce to accompany this dish perfectly. Happy cooking!













