Introduction to How To Make Root Vegetable Gratin
If you're in search of a cozy, heartwarming dish that perfectly blends comfort and flavor, look no further than root vegetable gratin. This sumptuous side is not only visually stunning but also an indulgent delight that celebrates the rich flavors of seasonal veggies like sweet potatoes, parsnips, and beets. It's the kind of dish that warms you from the inside out, making it an ideal centerpiece for family gatherings or holiday feasts.
One of the best things about making a gratin is its versatility. You can play with the ingredients, mixing in different cheeses or herbs to suit your taste. Plus, as you layer those beautiful, colorful slices of root vegetables, you’ll feel that rush of creativity in your kitchen. Did you know that root vegetables are packed with nutrients, including fiber, vitamins, and antioxidants? (For more health benefits, check out this article from the Harvard Health Blog)
When you're ready to dive into a comforting dish that’s as satisfying to prepare as it is to eat, let's explore how to make root vegetable gratin. You’ll be rewarded with a creamy, cheesy masterpiece that has the power to impress even the pickiest eaters at your table!

Ingredients for Root Vegetable Gratin
If you’re looking to elevate your side dish game, this Cheesy Root Vegetable Gratin is the way to go! Here’s what you’ll need for this creamy, delicious recipe.
- Butter: Start with 4 tablespoons of melted butter to create a rich base.
- Sweet Potatoes: Use 2 long sweet potatoes, known for their natural sweetness and vibrant color.
- Parsnips: Grab 2 large parsnips; they add a lovely, nutty flavor to the dish.
- Beets or Turnips: You can choose 2 small beets (or substitute with turnips if you prefer).
- Heavy Cream: 1 cup (240ml) of heavy cream gives that luscious, creamy texture we all love in a gratin.
- Parmesan Cheese: Just 1 ounce (28g) of grated Parmesan adds a savory depth to each bite.
- Dried Thyme: You’ll need 1 teaspoon, divided, for that aromatic hint.
- Garlic: 1 clove, peeled and grated, for an undeniable flavor punch.
- Salt and Pepper: Season to taste for the perfect balance.
- Gruyere Cheese: Use 1 cup (115g) of grated Gruyere cheese, or any similar melting cheese, divided, for that gooey goodness.
- Fresh Thyme (Optional): Garnish with fresh thyme for a touch of elegance.
This mix of ingredients makes How to Make Root Vegetable Gratin easy and flavorful! For additional tips and variations, check out this handy guide!
Step-by-Step Preparation of Root Vegetable Gratin
Preheat and Prepare Your Baking Dish
To begin your root vegetable gratin journey, you’ll want to set the stage by preheating your oven to 400°F (200°C or gas mark 6). This is essential for ensuring your dish cooks evenly. While your oven warms up, grab a 3-quart shallow baking dish and butter it with a bit of the melted butter from your ingredients list. This step not only adds flavor but also prevents sticking — we all want those glorious layers to slide out smoothly when it’s time to serve!
Whisk the Creamy Mixture
Next up, it’s time to create that dreamy, creamy mixture that makes this gratin stand out. In a mixing bowl, whisk together the heavy cream, the remaining melted butter, grated Parmesan cheese, half of your dried thyme, and grated garlic. You’ll want this mixture to be well combined and fragrant. Pour about a quarter of this glorious cream blend into your prepared baking dish, setting the rest aside for later. This base adds a lush flavoring to your root veggies as they bake together.
Prepare and Season the Sweet Potatoes
Now, let’s dive into the heart of the dish: the sweet potatoes. Peel them and slice them into uniform ¼-inch-thick rounds. This ensures even cooking and makes those beautiful layers when displayed in your baking dish. Place these slices in a bowl with one-third of the reserved cream mixture. Season lightly with salt and pepper, and toss them gently to coat. Then, arrange the sweet potatoes in the baking dish in a single row, overlapping them slightly to create a stunning visual appeal. Pour any leftover cream from the bowl over the sweet potatoes, allowing the mixture to seep in.
Layer the Parsnips with Cream
Moving on to the parsnips, repeat the same process as the sweet potatoes. Slice them thinly after peeling, and then toss them in a bowl with another third of the cream mixture, seasoning as you did before. Layer these creamy, seasoned parsnips right atop the sweet potatoes. This layered approach will create a delightful medley of flavors when the dish is baked.
Add the Beets and Complete the Layering
Finally, bring in the vibrant beets (feel free to swap them with turnips if you prefer). Slice them and toss them in the remaining cream mixture. Layer these colorful slices on top of the parsnips; make sure to pour any remaining cream over this top layer. Each bite will be a burst of color and flavor!
Bake with and Without Foil
Cover your baking dish tightly with aluminum foil, placing it on a baking sheet (to catch any potential drips). It's time to bake for 40 minutes, allowing the vegetables to soften and meld. After this initial baking, remove the foil and sprinkle the Gruyere cheese on top. Return to the oven and bake uncovered for another 35 to 40 minutes, until the vegetables are tender and the top is bubbling and golden brown.
Let the gratin sit for a few minutes before diving in. Garnish with a sprinkle of fresh thyme if you're feeling fancy!
Want to explore other delicious recipes? Check out BBC Good Food for more inspired dish ideas. Enjoy your cooking!

Variations on Root Vegetable Gratin
Substitute with Other Root Vegetables
While sweet potatoes, parsnips, and beets create a delightful flavor combination, feel free to mix in other root vegetables like carrots, turnips, or even rutabagas. Each offers its unique flavor profile; for example, incorporating carrots adds a subtle sweetness that complements the creaminess beautifully. Don’t be afraid to experiment! Check out this resource from EatingWell for a guide on root vegetables.
Vegan Options for a Plant-Based Gratin
Want to know how to make a plant-based version of this delectable gratin? Simply substitute the heavy cream with coconut milk or almond milk for a creamy base. Use nutritional yeast instead of cheese to impart a delicious cheesy flavor without dairy. Opting for a vegan butter in place of regular butter can also elevate your dish while keeping it entirely plant-based.
With these simple swaps, you can create a loved dish that caters to various dietary preferences while still tasting amazing!
Cooking Tips and Notes for Root Vegetable Gratin
Use fresh herbs for enhanced flavor
When making root vegetable gratin, don’t underestimate the power of fresh herbs! Utilizing fresh thyme will elevate the dish with a vibrant flavor that dried herbs can’t match. Simply sprinkle some chopped fresh thyme over the top before serving for an aromatic finish that’ll impress your guests. For a unique twist, try adding rosemary or sage, both of which complement root vegetables beautifully.
Ensure even slicing of vegetables for consistent cooking
To achieve that perfect melt-in-your-mouth texture, it’s key to slice your vegetables evenly—about ¼ inch thick. This uniformity allows for consistent cooking, ensuring no crunchy surprises when you dig into your delectable gratin. If time allows, consider using a mandolin for precision and ease. Not only will your gratin look stunning with those neat layers, but cooking will also feel more effortless! For more expert tips on slicing, check out this resource.

Serving Suggestions for Root Vegetable Gratin
Pairing with a Protein-Rich Main Dish
When considering how to make this root vegetable gratin a part of your main meal, think of pairing it with a hearty protein like grilled chicken or turkey bacon. These options not only complement the rich, creamy flavors of the gratin but also provide a satisfying balance. The savory notes of the protein enhance the group of earthy flavors from the sweet potatoes, parsnips, and beets—a match made in culinary heaven!
Making it a Standalone Meal with a Salad
If you're aiming for something light yet filling, serving the root vegetable gratin alongside a fresh, vibrant salad works perfectly! Consider a simple green salad with a zesty vinaigrette. This will bring out the creaminess of the gratin without overwhelming your palate. You might even add nuts or seeds for that extra crunch! For inspiration, check out Minimalist Baker, where they feature some delightful salad recipes that pair beautifully with rich dishes like this one.
Time Breakdown for Root Vegetable Gratin
Preparation time: 20 minutes
Get your kitchen ready and chop those stunning root vegetables. It's a great time to crank up some music and enjoy the chopping process.
Cooking time: 1 hour 18 minutes
With the magic of baking, your gratin will turn golden and bubbly—perfect for keeping your guests captivated.
Total time: 1 hour 38 minutes
In less than two hours, you’ll have a delicious root vegetable gratin ready to impress everyone at your table.
If you’d like to dive deeper into the world of root vegetables and seasonal cooking, check out The Spruce Eats for tips on selecting the best produce.
Nutritional Facts for Root Vegetable Gratin
Calories
Each serving of this delectable Root Vegetable Gratin contains approximately 350 calories, making it a rich side dish perfect for special occasions or family gatherings.
Protein
Packed with about 10 grams of protein per serving, the combination of Gruyere and Parmesan cheese, along with the root vegetables, contributes to a satisfying meal.
Fiber
With around 5 grams of fiber per serving, this gratin not only pleases your palate but also supports digestive health. The sweet potatoes, parsnips, and beets are excellent fiber sources, adding to the overall nutrition of the dish.
For more nutritious ideas, check out the USDA’s Nutrition Database for information on a variety of vegetables!
FAQs about Root Vegetable Gratin
Can I prepare this gratin in advance?
Absolutely! How to make Root Vegetable Gratin a day ahead of time can save you valuable holiday prep time. Simply assemble the dish up to the baking stage, cover it with foil, and refrigerate. When you're ready to serve, bake it straight from the fridge—just add a few extra minutes to the cooking time to ensure it's heated all the way through.
What can I substitute for Gruyere cheese?
If you're not a fan of Gruyere, don’t worry—there are delicious alternatives! Try using fontina, gouda, or emmental cheese, which all have similar melting properties. Each will bring a unique twist to your gratin while still achieving that creamy, cheesy goodness.
Is there a gluten-free option for Root Vegetable Gratin?
Yes! The beauty of this gratin is that it doesn’t require any flour or breadcrumbs, making it inherently gluten-free. Just double-check that your cream and cheese are gluten-free, and you're good to go! For more gluten-free inspiration, check out resources like Celiac Disease Foundation.
Feel free to explore your flavors and enjoy this hearty dish with family and friends!
Conclusion on Root Vegetable Gratin
Making root vegetable gratin is a wonderful way to celebrate seasonal produce in a comforting dish. It’s creamy, delicious, and sure to impress your guests at any gathering. With just a bit of preparation, you'll have a dish that's both nutritious and satisfying. Don't hesitate to experiment with different root vegetables for your own unique twist! Enjoy every creamy bite!
For more delicious inspiration, check out EatingWell’s guide on root vegetables.

How To Make Root Vegetable Gratin – Creamy & Delicious Recipe
Equipment
- Oven
- shallow baking dish
- mixing bowl
Ingredients
Butter and Cream
- 4 TBS butter melted
- 1 cup heavy cream (240ml)
- 1 ounce Parmesan cheese (28g), grated
Vegetables
- 2 long sweet potatoes
- 2 large parsnips
- 2 small beets (can use turnips instead if you wish)
Spices and Seasoning
- 1 teaspoon dried thyme divided
- 1 clove garlic peeled and grated
- salt to taste
- black pepper to taste
Cheese
- 1 cup Gruyere cheese (115g), grated
Garnish
- Fresh thyme to garnish (optional)
Instructions
Cooking Instructions
- Preheat the oven to 400°F/200°C/gas mark 6. Butter a 3 QT (liter) shallow baking dish with a bit of the butter.
- Whisk the cream together with the remaining melted butter, the Parmesan cheese, dried thyme and grated garlic. Pour ¼ of it into the bottom of the baking dish. Set the remainder aside.
- Peel your vegetables and cut them into ¼-inch-thick rounds.
- Put the sweet potatoes into a bowl with ⅓ of the remaining cream mixture. Season lightly and toss together to coat. Place into the baking dish in a row, overlapping them. Pour any cream remaining in the bowl over top.
- Put the parsnips into a bowl with another ⅓ of the cream mixture. Season lightly and toss together to coat. Place into the baking dish in a row, overlapping them. Pour any cream remaining in the bowl over top.
- Put the beets into a bowl with the remainder of the cream mixture. Season lightly and toss together to coat. Place into the baking dish in a row, overlapping them. Pour any cream remaining in the bowl over top.
- Cover the baking dish tightly with aluminum foil. Place onto a baking sheet.
- Bake for 40 minutes.
- Uncover and sprinkle with the Gruyere cheese. Bake uncovered for another 35 to 40 minutes, until the vegetables are tender, the casserole is lovely and bubbling and golden brown.
- Let stand for a few minutes prior to serving. Garnish with fresh thyme if desired.





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