The Ultimate Sweet Potato & Cranberry Gratin

Table of Contents

• 1. A Holiday Dish to Remember
• 2. Why You’ll Love This Recipe
• 3. Ingredients for the Perfect Gratin
• 4. Step-by-Step Instructions
• 5. Tips for the Best Sweet Potato & Cranberry Gratin
• 6. What to Serve With Your Gratin
• 7. Foire Aux Questions

1. A Holiday Dish to Remember

Welcome, fellow food lovers! Today, I’m sharing a recipe that is pure comfort and elegance all in one dish: the perfect Sweet Potato & Cranberry Gratin. This isn’t just any side dish; it’s a showstopper that balances the earthy sweetness of sweet potatoes with the tart, festive burst of cranberries, all enveloped in a rich, creamy sauce. It’s the ultimate holiday recipe that will have your guests asking for seconds.

Whether you’re planning a Thanksgiving feast, a Christmas dinner, or simply craving a cozy and delicious meal, this dish delivers. The vibrant colors and incredible flavors make it a standout addition to any table. Let’s dive in and create some magic in the kitchen!

2. Why You’ll Love This Recipe

This Sweet Potato & Cranberry Gratin is a true crowd-pleaser for so many reasons. First, the combination of flavors is simply divine. The natural sweetness of the potatoes is perfectly cut by the tartness of the cranberries, creating a sophisticated and balanced bite every time.

Second, it’s incredibly versatile. It’s a fantastic vegetarian side dish that feels hearty and special. Plus, the creamy texture and golden-brown top make it a comforting classic that feels both rustic and refined. This easy recipe is destined to become a new family favorite. See others recipes here .

3. Ingredients for the Perfect Gratin

The beauty of this recipe lies in its simple, high-quality ingredients. You don’t need anything too fancy to create this spectacular dish. Here’s what you’ll gather:

• 2 lbs (about 900g) sweet potatoes, peeled and thinly sliced (about 1/8-inch thick)
• 1 ½ cups heavy cream
• ½ cup whole milk
• 2 cloves garlic, minced
• 1 teaspoon fresh thyme leaves, plus more for garnish
• ½ teaspoon grated nutmeg
• Salt and freshly ground black pepper to taste
• 1 cup fresh or frozen cranberries
• 1 cup grated Gruyère or sharp white cheddar cheese (optional, for a cheesy top)
• 2 tablespoons unsalted butter, cut into small pieces

4. Step-by-Step Instructions

Creating this beautiful gratin is easier than you think. Follow these simple steps for a flawless result that will impress everyone at your dinner table.

1. Prepare the Cream Mixture: In a medium saucepan, combine the heavy cream, milk, minced garlic, thyme, and nutmeg. Bring the mixture to a gentle simmer over medium heat. Let it simmer for about 5 minutes for the flavors to infuse. Season generously with salt and pepper, then remove from heat.
2. Preheat and Prep Dish: Preheat your oven to 400°F (200°C). Generously butter a 9×13-inch baking dish or a similar-sized gratin dish.
3. Layer the Gratin: Arrange one-third of the sliced sweet potatoes in an even, overlapping layer in the bottom of the prepared dish. Sprinkle half of the cranberries over the potatoes. Pour about one-third of the warm cream mixture over the layer. Repeat with another layer of sweet potatoes, the remaining cranberries, and another third of the cream. Finish with the last layer of sweet potatoes and pour the remaining cream mixture over the top.
4. Add Toppings: If you’re using cheese, sprinkle it evenly over the top layer. Dot the surface with the small pieces of butter. This will help create a beautifully golden and delicious crust.
5. Bake to Perfection: Place the baking dish on a baking sheet to catch any potential spills. Bake for 45-60 minutes, or until the top is golden brown and bubbly, and the sweet potatoes are tender when pierced with a knife. For more information on vegetable roasting techniques, check out this great guide from Serious Eats.
6. Rest and Serve: Let the Sweet Potato & Cranberry Gratin rest for at least 10 minutes before serving. This allows the gratin to set, making it easier to slice and serve. Garnish with a sprinkle of fresh thyme leaves and enjoy!

5. Tips for the Best Sweet Potato & Cranberry Gratin

Want to ensure your gratin is absolutely perfect? Here are a few pro tips to take this dish from great to unforgettable.

• Uniform Slices: Use a mandoline for thinly and evenly sliced sweet potatoes. This ensures they cook at the same rate for a consistent, tender texture throughout the dish.
• Don’t Skimp on Cream: The heavy cream is essential for that rich, luscious sauce. While you can use half-and-half in a pinch, full-fat cream provides the best results for this comfort food classic.
• Make-Ahead Tip: You can assemble the entire Sweet Potato & Cranberry Gratin (without baking) up to a day in advance. Cover it tightly with plastic wrap and refrigerate. Just add about 10-15 minutes to the baking time.

6. What to Serve With Your Gratin

This delightful gratin is the perfect companion to a variety of main courses. It’s a star player in any holiday spread, pairing beautifully with roasted turkey, glazed ham, or a juicy roast chicken.

For a complete vegetarian meal, serve it alongside a hearty green salad with a vinaigrette dressing and some roasted green beans or Brussels sprouts. The creamy, sweet, and tart profile of the gratin complements almost any savory dish.

Foire Aux Questions

Can I use dried cranberries instead of fresh or frozen?

Yes, you can substitute dried cranberries if that’s what you have on hand. Use about 1/2 to 2/3 cup of dried cranberries, as their flavor is more concentrated. They will also add a slightly chewier texture to the gratin, which can be a delicious variation.

How do I store and reheat leftovers?

Leftovers can be stored in an airtight container in the refrigerator for up to 4 days. To reheat, place the desired portion in an oven-safe dish and bake at 350°F (175°C) for 15-20 minutes, or until heated through. You can also microwave individual portions for a quicker option.

Can I make a vegan version of this gratin?

Absolutely! To make this recipe vegan, substitute the heavy cream and milk with a full-fat coconut milk or a cashew cream base. Use a high-quality vegan butter to grease the dish and dot the top, and either omit the cheese or use your favorite dairy-free Gruyère or cheddar alternative.