Veggie

Turnip And Potato Gratin

Name: Turnip And Potato Gratin
Prep time: 30 min
Cook time: 45 min
Total time: 75 min
Yield: 6 servings
Ingredients: 2 lbs (900g) turnips, peeled and thinly sliced; 1 lb (450g) potatoes, peeled and thinly sliced; 2 tablespoons unsalted butter; 1 onion, thinly sliced; 2 cloves garlic, minced; 1 cup (250ml) heavy cream; 1 cup (115g) grated cheddar cheese; 1/2 cup (55g) grated Parmesan cheese; 1/2 teaspoon salt; 1/4 teaspoon black pepper; 2 tablespoons chopped fresh parsley

By Yara Larkin · June 19, 2026 · Veggie

Prep30 min

Cook45 min

Total75 min

Serves6

There's something special about a warm, comforting casserole that brings everyone together. For me, that dish is Turnip And Potato Gratin. I remember my grandmother making it for our family gatherings, and the aroma of tender turnips and potatoes, mixed with the richness of cheese and cream, would fill the entire house. It was always a hit, and now I'm excited to share my own version of this beloved recipe with you.

This Turnip And Potato Gratin is a masterclass in comfort food. It's a simple, yet elegant dish that's perfect for a weeknight dinner or a special occasion. The best part? It's incredibly easy to make, and the result is a delicious, golden-brown casserole that's sure to become a family favorite.

So, what makes this recipe so special? For starters, it's all about the layers. You've got your tender turnips and potatoes, which provide a beautiful base for the dish. Then, you've got the creamy sauce, made with a mixture of cheese, cream, and spices. And finally, you've got the crispy, golden-brown top, which adds a satisfying crunch to each bite.

This recipe is perfect for anyone looking for a hearty, comforting meal that's easy to make and fun to eat. Whether you're a busy parent looking for a quick weeknight dinner or a seasoned cook looking for a new challenge, this Turnip And Potato Gratin is sure to delight.

In this recipe, I'll walk you through every step of the process, from preparing the turnips and potatoes to assembling the casserole and baking it to perfection. I'll also share some tips and tricks for customizing the recipe to your taste, so you can make it your own.

Why You’ll Love This Recipe

This recipe is easy to make and requires minimal ingredients.
It's a comforting, one-dish meal that's perfect for a weeknight dinner or special occasion.
The layers of tender turnips and potatoes, and creamy sauce, make for a delicious and satisfying bite.
The crispy, golden-brown top adds a satisfying crunch to each bite.
It's a versatile recipe that can be customized to your taste.
It's a great way to use up turnips and potatoes, and can be made with a variety of cheeses and spices.
It's a crowd-pleasing dish that's sure to become a family favorite.

Why This Recipe Works

The key to a great Turnip And Potato Gratin is in the layers. By alternating between tender turnips and potatoes, and a creamy sauce, you create a dish that's both comforting and elegant. The turnips and potatoes provide a beautiful base for the casserole, while the sauce adds a rich, creamy element that ties everything together.

Another important factor is the cooking time and temperature. By baking the casserole at a moderate temperature, you allow the turnips and potatoes to cook slowly and evenly, while the top browns to a crispy, golden-brown perfection. This ensures that each bite is tender, flavorful, and satisfying.

Finally, the resting time is crucial. By letting the casserole rest for a few minutes before serving, you allow the flavors to meld together, and the sauce to set. This makes the dish easier to serve, and ensures that each bite is cohesive and delicious.

Overall, this Turnip And Potato Gratin is a masterclass in comfort food. It's a simple, yet elegant dish that's perfect for any occasion, and is sure to become a family favorite.

Ingredients You’ll Need

When it comes to making a great Turnip And Potato Gratin, the ingredients are key. You'll need a few simple ingredients, including turnips, potatoes, cheese, cream, and spices. Be sure to choose fresh, high-quality ingredients, as they will make a big difference in the final dish.

One of the most important ingredients in this recipe is the turnips. Look for turnips that are firm and have a sweet, slightly peppery flavor. You can also use other types of root vegetables, such as parsnips or rutabaga, if you prefer.

2 lbs (900g) turnips, peeled and thinly slicedLook for turnips that are firm and have a sweet, slightly peppery flavor. You can also use other types of root vegetables, such as parsnips or rutabaga, if you prefer.
1 lb (450g) potatoes, peeled and thinly slicedChoose high-quality potatoes that are firm and have a smooth, creamy texture. Russet or Yukon Gold potatoes work well in this recipe.
2 tablespoons unsalted butterUse high-quality, unsalted butter for the best flavor. You can also use other types of fat, such as olive oil or duck fat, if you prefer.
1 onion, thinly slicedChoose a sweet, mild onion, such as a Vidalia or yellow onion. You can also use other types of onions, such as shallots or scallions, if you prefer.
2 cloves garlic, mincedUse fresh, high-quality garlic for the best flavor. You can also use other types of garlic, such as roasted garlic or garlic scapes, if you prefer.
1 cup (250ml) heavy creamChoose high-quality, heavy cream for the best flavor and texture. You can also use other types of cream, such as half-and-half or whole milk, if you prefer.
1 cup (115g) grated cheddar cheeseUse high-quality, sharp cheddar cheese for the best flavor. You can also use other types of cheese, such as Gruyère or Parmesan, if you prefer.
1/2 cup (55g) grated Parmesan cheeseChoose high-quality, aged Parmesan cheese for the best flavor. You can also use other types of cheese, such as Pecorino or Romano, if you prefer.
1/2 teaspoon saltUse high-quality, flaky sea salt for the best flavor. You can also use other types of salt, such as kosher salt or table salt, if you prefer.
1/4 teaspoon black pepperChoose high-quality, freshly ground black pepper for the best flavor. You can also use other types of pepper, such as white pepper or green pepper, if you prefer.
2 tablespoons chopped fresh parsleyUse fresh, high-quality parsley for the best flavor and texture. You can also use other types of herbs, such as thyme or rosemary, if you prefer.

Ingredients for Turnip And Potato Gratin

Equipment You’ll Need

Large, heavy skillet or sauté panSharp chef's knifeCutting boardInstant-read thermometer9x13-inch baking dishWhiskMeasuring cups and spoons

How to Make Turnip And Potato Gratin

1
Preheat your oven to 375°F (190°C).
2
In a large, heavy skillet or sauté pan, melt the butter over medium heat. Add the sliced onion and cook, stirring occasionally, until it is softened and lightly browned, about 20-25 minutes.
3
Add the minced garlic to the skillet and cook, stirring constantly, for 1-2 minutes, until fragrant.
4
In a large bowl, combine the sliced turnips and potatoes. Season with salt and pepper to taste.
5
In a separate bowl, whisk together the heavy cream and grated cheddar cheese. Season with salt and pepper to taste.
6
To assemble the casserole, create a layer of turnips and potatoes in the bottom of the baking dish. Top with a layer of the cream and cheese mixture, followed by a sprinkle of grated Parmesan cheese.
7
Repeat the layers, starting with the turnips and potatoes, then the cream and cheese mixture, and finally the Parmesan cheese. Top the final layer of turnips and potatoes with the remaining cream and cheese mixture, and sprinkle with Parmesan cheese.
8
Cover the baking dish with aluminum foil and bake for 30 minutes. Remove the foil and continue baking, uncovered, for an additional 20-25 minutes, until the top is golden brown and the casserole is heated through.
9
Remove the casserole from the oven and let it rest for 10-15 minutes before serving. Sprinkle with chopped fresh parsley and serve hot.
10
To check for doneness, insert an instant-read thermometer into the center of the casserole. The internal temperature should reach 165°F (74°C).
11
To ensure the casserole is cooked evenly, rotate the baking dish halfway through the cooking time.
12
Let the casserole rest for a few minutes before serving, to allow the flavors to meld together and the sauce to set.

Expert Tips

To ensure the casserole is cooked evenly, rotate the baking dish halfway through the cooking time.
Let the casserole rest for a few minutes before serving, to allow the flavors to meld together and the sauce to set.
Use high-quality, fresh ingredients for the best flavor and texture.
Don't overmix the cream and cheese mixture, as it can become too thick and sticky.
Add some diced ham or bacon to the casserole for added smoky flavor.
Experiment with different types of cheese, such as Gruyère or Parmesan, for a unique flavor profile.
Try using other types of root vegetables, such as parsnips or rutabaga, for a different twist on the recipe.
To make the casserole ahead of time, assemble the layers and refrigerate overnight, then bake in the morning.

Common Mistakes to Avoid

Not cooking the onion long enough, resulting in a crunchy texture.
Not seasoning the turnips and potatoes with salt and pepper, resulting in a bland flavor.
Overmixing the cream and cheese mixture, resulting in a too-thick and sticky sauce.
Not letting the casserole rest before serving, resulting in a messy and uneven presentation.
Not using high-quality, fresh ingredients, resulting in a subpar flavor and texture.
Not rotating the baking dish halfway through the cooking time, resulting in an unevenly cooked casserole.

Variations and Substitutions

Add some diced ham or bacon to the casserole for added smoky flavor.
Experiment with different types of cheese, such as Gruyère or Parmesan, for a unique flavor profile.
Try using other types of root vegetables, such as parsnips or rutabaga, for a different twist on the recipe.
Add some chopped fresh herbs, such as thyme or rosemary, for added depth of flavor.
Use different types of cream, such as half-and-half or whole milk, for a lighter or heavier sauce.
Add some grated nutmeg or cayenne pepper for added warmth and spice.
Try using a combination of cheddar and Parmesan cheese for a rich and creamy sauce.

What to Serve With Turnip And Potato Gratin

This Turnip And Potato Gratin is perfect as a main dish or side dish for any occasion. It pairs well with a variety of proteins, such as roasted chicken or grilled steak, and can be served with a simple green salad or roasted vegetables.

Some other ideas for serving this casserole include:

Roasted chickenGrilled steakSimple green saladRoasted vegetablesGarlic breadCreamy soup

Make-Ahead, Storage, Freezing and Reheating

This Turnip And Potato Gratin can be made ahead of time and refrigerated or frozen for later use. To refrigerate, assemble the casserole and store it in the refrigerator for up to 24 hours before baking.

To freeze, assemble the casserole and store it in the freezer for up to 3 months. To reheat, thaw the casserole overnight in the refrigerator, then bake as directed.

When reheating the casserole, make sure to cover it with aluminum foil to prevent the top from burning. You can also reheat the casserole in the microwave, but be careful not to overheat it, as it can become dry and tough.

To reheat the casserole without drying it out, make sure to add a little bit of cream or cheese to the top before reheating. This will help to keep the casserole moist and creamy.

Frequently Asked Questions

Can I make this recipe ahead of time?

Yes, you can make this recipe ahead of time and refrigerate or freeze it for later use. To refrigerate, assemble the casserole and store it in the refrigerator for up to 24 hours before baking. To freeze, assemble the casserole and store it in the freezer for up to 3 months. To reheat, thaw the casserole overnight in the refrigerator, then bake as directed.

Can I use different types of cheese?

Yes, you can experiment with different types of cheese, such as Gruyère or Parmesan, for a unique flavor profile. Just be sure to choose a cheese that melts well and has a good flavor.

Can I add other ingredients to the casserole?

Yes, you can add other ingredients to the casserole, such as diced ham or bacon, chopped fresh herbs, or grated nutmeg. Just be sure to choose ingredients that complement the flavors of the turnips and potatoes.

How do I know when the casserole is done?

To check for doneness, insert an instant-read thermometer into the center of the casserole. The internal temperature should reach 165°F (74°C). You can also check the casserole for doneness by looking for a golden-brown top and a set, creamy sauce.

Can I make this recipe in a smaller or larger baking dish?

Yes, you can make this recipe in a smaller or larger baking dish, just be sure to adjust the cooking time accordingly. A smaller baking dish will cook more quickly, while a larger baking dish will take longer to cook.

Can I use leftover turnips and potatoes?

Yes, you can use leftover turnips and potatoes in this recipe. Just be sure to reheat them before adding them to the casserole, and adjust the cooking time accordingly.

How do I prevent the casserole from drying out?

To prevent the casserole from drying out, make sure to cover it with aluminum foil during baking, and add a little bit of cream or cheese to the top before reheating. You can also try using a higher ratio of cream to cheese, or adding some grated nutmeg or cayenne pepper to the sauce.

Can I make this recipe for a crowd?

Yes, you can make this recipe for a crowd by simply multiplying the ingredients and using a larger baking dish. Just be sure to adjust the cooking time accordingly, and consider using a few smaller baking dishes instead of one large one.

The Full Recipe

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