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Root Vegetable Gratin

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A golden, cheesy layered gratin featuring a mix of root vegetables, perfect for holiday meals or Sunday roasts.

Ingredients

Scale
  • 1 pound potatoes, thinly sliced
  • 1 pound parsnips, thinly sliced
  • 1 pound carrots, thinly sliced
  • 1 pound sweet potatoes, thinly sliced
  • 2 cups heavy cream
  • 1 cup milk
  • 2 cloves garlic, minced
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon nutmeg
  • 2 cups shredded Gruyere cheese
  • 1/2 cup grated Parmesan cheese
  • 2 tablespoons chopped fresh thyme (optional)
  • 2 tablespoons chopped fresh rosemary (optional)

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. Grease a 9×13 inch baking dish.
  3. In a large bowl, combine the sliced potatoes, parsnips, carrots, and sweet potatoes.
  4. In a separate bowl, whisk together the heavy cream, milk, minced garlic, salt, pepper, and nutmeg.
  5. Pour the cream mixture over the root vegetables and toss to coat evenly.
  6. Arrange half of the vegetable mixture in the prepared baking dish.
  7. Sprinkle half of the Gruyere cheese and half of the Parmesan cheese over the vegetables. If using fresh herbs, sprinkle half of them now.
  8. Layer the remaining vegetable mixture on top.
  9. Sprinkle the remaining Gruyere cheese, Parmesan cheese, and herbs (if using) over the top.
  10. Cover the baking dish tightly with aluminum foil.
  11. Bake for 45 minutes.
  12. Remove the foil and bake for another 20-25 minutes, or until the top is golden brown and bubbly, and the vegetables are tender when pierced with a fork.
  13. Let the gratin rest for 10 minutes before serving.

Notes

  • For a make-ahead option, assemble the gratin up to 24 hours in advance. Cover and refrigerate. When ready to bake, add an extra 10-15 minutes to the covered baking time.
  • To reheat, cover the gratin with foil and bake at 350°F (175°C) for 20-30 minutes, or until heated through. Remove foil for the last 10 minutes if you want to crisp the top.
  • You can substitute other root vegetables like beets or celery root.
  • Adjust the herbs to your preference.

Nutrition

Find it online: https://mdlatdmm.com/root-vegetable-gratin/