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Cheesy Root Vegetable Gratin

Cheesy Root Vegetable Gratin to Warm Your Holiday Table

A delightful Cheesy Root Vegetable Gratin featuring layers of sweet potatoes, beets, and parsnips in a creamy garlic cheese sauce, perfect for the holiday table.
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Prep Time 30 minutes
Cook Time 1 hour
Resting Time 10 minutes
Total Time 1 hour 40 minutes
Servings: 8 slices
Course: Dinner
Cuisine: American
Calories: 300
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Gratin
  • 4 tablespoons Unsalted Butter for greasing baking dish
  • 3 cups Sweet Potatoes peeled and sliced
  • 2 cups Parsnips peeled and sliced
  • 2 cups Beets peeled and sliced
  • 2 cups Heavy Cream can substitute whole milk
  • 1 ounce Grated Parmesan Cheese divided
  • 1 tablespoon Fresh Minced Thyme or dried thyme
  • 1 clove Garlic finely minced
  • 1 cup Shredded Gruyère Cheese for topping
  • 1 teaspoon Salt to taste
  • 1 teaspoon Pepper to taste

Equipment

  • Oven
  • 3-quart baking dish
  • Mandoline

Method
 

Step-by-Step Instructions
  1. Preheat your oven to 400°F (204°C) and grease the baking dish with unsalted butter.
  2. Slice the sweet potatoes, parsnips, and beets into very thin rounds using a mandoline.
  3. Toss the sweet potatoes and parsnips with 4 tablespoons of heavy cream, ½ ounce of grated Parmesan, thyme, salt, and pepper. Repeat with the beets using 2 tablespoons of cream.
  4. Pour 1/4 cup of cream into the bottom of the baking dish, sprinkle with ½ ounce of Parmesan and minced garlic.
  5. Layer the sweet potato slices, followed by parsnips, and beets in the baking dish, ensuring they are arranged in rows.
  6. Season the top layer with salt, pepper, and remaining grated Parmesan.
  7. Cover the baking dish with foil and bake for 30 minutes.
  8. Remove the foil and sprinkle shredded Gruyère cheese over the top. Bake uncovered for an additional 18-20 minutes.
  9. Let the gratin rest for a few minutes before garnishing with fresh thyme and serving.

Nutrition

Serving: 1sliceCalories: 300kcalCarbohydrates: 30gProtein: 8gFat: 18gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 5gCholesterol: 60mgSodium: 400mgPotassium: 600mgFiber: 5gSugar: 5gVitamin A: 15000IUVitamin C: 30mgCalcium: 200mgIron: 2mg

Notes

Perfect for serving at holiday meals or as a vegetarian centerpiece. Can be prepared ahead of time and refrigerated.

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