Recipes

Potato & Celery Root Gratin with Leeks

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Introduction

Discover the delightful union of flavors with our Potato & Celery Root Gratin with Leeks recipe. A harmonious blend of earthy potatoes, tender celery root, and aromatic leeks, all bathed in rich cream. This gratin is not just a meal; it’s an experience that promises to elevate your dinner table.

Tips for this recipe

  • Ensure vegetables are thinly sliced for even cooking.
  • Use a non-stick pan to brown potatoes, enhancing their flavor.
  • Gradually add the Gruyère cheese to allow it to melt and become golden without burning.

Why you will love this recipe

This gratin is a celebration of comfort food made sophisticated. The velvety potatoes, subtly spiced with fresh thyme and complemented by the crisp-tender celery root and leeks offer an unmatched taste sensation. Its elegance lies in its simplicity—each ingredient shines through without overwhelming the palate.

Ingredients

  • 3 cups heavy cream
  • 2 garlic cloves, peeled
  • 1 sprig thyme plus 3 teaspoons fresh thyme leaves, divided
  • 2 tablespoons unsalted butter, divided
  • 3 leeks, white and pale-green parts only, halved lengthwise, thinly sliced crosswise
  • Kosher salt
  • 2 pounds russet potatoes, peeled, very thinly sliced crosswise (1/8″ thick)
  • 1 pound celery root, peeled, very thinly sliced crosswise (1/8″ thick)
  • 2 cups grated Gruyère cheese
  • Freshly ground black pepper

Adviced equipments

  • Victorinox Fibrox Pro Chef’s Knife
  • Cuisinart 14-cup Food Processor
  • KitchenAid Artisan Series Stand Mixer with Prep Bands (optional)
  • Anova Precision Cooker or KitchenAid Stand Mixer with Wire Whip Attachment
  • Cuisinart 10-Piece Cookware Set
  • OXO Good Grips Stainless Steel Chef’s Pan, 10.5 inch

History of the recipe

Gratin dishes have a rich history that dates back centuries, originating from France and Italy where they are known as ‘gratiné’ or ‘trita’. The French introduced gratin to America in the late 18th century. Over time, this technique has been adapted globally, with each region imparting its unique touches. Our Potato & Celery Root Gratin combines timeless tradition with a modern culinary twist.

fun facts about this recipe

Did you know that celery root, while often overshadowed by its cousin the common potato, offers an impressive array of health benefits? High in dietary fiber and antioinasts, it’s a hidden gem worthy of being on your plate. As for gratins, their irresistible charm lies not only in taste but also in texture—the perfect balance between crisp tops and creamy bottoms is an art form in culinary perfection.

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Potato & Celery Root Gratin with Leeks

Potato & Celery Root Gratin with Leeks

amanda

Equipment

  • - Victorinox Fibrox Pro Chef's Knife: A high-quality chef knife suitable for efficient cutting, chopping, and slicing of ingredents such as celery root and leeks.

  • - Cuisinart 14-cup Food Processor: Useful for shredding potatoes, dicing vegetables, or making a roux base for the gratin sauce.

  • - KitchenAid Artisan Series Stand Mixer with Prep Bands: Versatile tool used for whipping cream and mixing batter if needed for the gratin topping.

  • - Anova Precision Cooker: Induction cooktop or electric steamer, perfect for evenly cooking ingredients without overcooking them.

  • - KitchenAid Stand Mixer with Dough Hooks: Assists in preparing and mixing dough if a bread-based topping is added.

  • - Cuisinart 10-Piece Cookware Set: Includes baking pans suitable for making gratin, such as round or rectangular casserole dishes.

  • - KitchenAid Artisan Series Stand Mixer with Wire Whip Attachment: Ideal for whipping cream to top the gratin in a luxurious manner.

  • - KitchenAid 5-Quart Heavy Duty Stand Mixer: Offers powerful performance and durability for heavy-duty tasks like making large batches of gratin.

  • - OXO Good Grips Stainless Steel Chef's Pan, 10.5 inch: Non-stick pan that can be used to brown the potatoes before baking them into a gratin.

  • - KitchenAid Artisan Series Stand Mixer with Flat Dough Hook Attachment: Useful for making and handling dough if incorporating bread crumbs or similar textures in the gratin.

Ingredients

  • 3 cups heavy cream

  • 2 garlic cloves, peeled

  • 1 sprig thyme plus 3 teaspoons fresh thyme leaves, divided

  • 2 tablespoons (1/4 stick) unsalted butter, divided

  • 3 leeks, white and pale-green parts only, halved lengthwise, thinly sliced crosswise

  • Kosher salt

  • 2 pounds russet potatoes, peeled, very thinly sliced crosswise (1/8" thick)

  • 1 pound celery root, peeled, very thinly sliced crosswise (1/8" thick)

  • 2 cups grated Gruyère

  • Freshly ground black pepper

Instructions

1

Instruction 1

Preheat oven to 350°F. Heat cream, garlic, and thyme sprig in a medium saucepan just until bubbles begin to form around edge of pan. Remove from heat; set aside to steep.
2

Instruction 2

Melt 1 tablespoon butter in a medium skillet over medium heat. Add leeks; season with salt and cook, stirring often, until tender (do not brown), 10-12 minutes. Transfer to a small bowl and set aside.
3

Instruction 3

Butter a 3-quart gratin dish with remaining 1 tablespoon butter. Layer 1/3 of potato slices and 1/3 of celery root slices evenly over bottom of baking dish. Cover with 1/3 of leeks, then 1/3 of Gruyère. Sprinkle with salt, pepper, and 1 teaspoon thyme leaves. Repeat layers twice more. Strain cream mixture into a medium pitcher and pour over vegetables.
4

Instruction 4

Set gratin dish on a large rimmed baking sheet and cover tightly with foil. Bake for 1 hour. Carefully remove foil; continue baking until top is golden brown and sauce is bubbling, 25-30 minutes. DO AHEAD: Can be made 2 hours ahead. Let stand at room temperature. Tent with foil and rewarm in a 300° oven until hot, about 20 minutes.
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