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–+ servings
Cheesy Root Vegetable Gratin

Savory Cheesy Root Vegetable Gratin to Warm Your Soul

This Cheesy Root Vegetable Gratin combines sweet potatoes, parsnips, and beets in a creamy garlic sauce, ideal for any gathering.
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Prep Time 30 minutes
Cook Time 50 minutes
Cooling Time 10 minutes
Total Time 1 hour 30 minutes
Servings: 6 servings
Course: Dinner
Cuisine: American
Calories: 300
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Gratin
  • 1 tablespoon Unsalted Butter for greasing the baking dish
  • 2 pieces Long Sweet Potatoes (1-2, about 2 inches thick) can substitute regular potatoes if preferred
  • 4 pieces Large Parsnips or swap in carrots for a different touch
  • 5 pieces Small Beets using pre-cooked beets can save time
  • 14 tablespoons Heavy Cream divided
  • 4 ounces Grated Parmesan divided
  • 1 tablespoon Fresh Minced Thyme divided
  • 1 clove Garlic minced
  • 1 ounce Shredded Gruyère Cheese or any melty cheese like mozzarella
  • to taste Salt for seasoning
  • to taste Pepper for seasoning

Equipment

  • 3-quart baking dish
  • mandoline

Method
 

Step-by-Step Instructions
  1. Preheat your oven to 400°F (200°C). Grease a 3-quart baking dish with unsalted butter.
  2. Slice sweet potatoes, parsnips, and beets into very thin rounds, about 1/8 inch thick.
  3. Coat each type of vegetable with heavy cream, using 4 tablespoons for sweet potatoes and parsnips, and 2 tablespoons for the beets. Add ½ ounce of grated Parmesan and 1 teaspoon of minced thyme to each bowl and season with salt and pepper.
  4. Pour ¼ cup of heavy cream into the bottom of the greased baking dish. Sprinkle with ½ ounce of Parmesan and the minced garlic.
  5. Layer the root vegetables upright in the dish, alternating between sweet potatoes, parsnips, and beets.
  6. Season the top layer with salt, pepper, and remaining grated Parmesan. Cover tightly with foil and bake for 30 minutes.
  7. Remove foil and sprinkle shredded Gruyère cheese on top. Return to oven and bake uncovered for an additional 18-20 minutes.
  8. Remove from oven, let cool slightly, and garnish with fresh thyme before serving.

Nutrition

Serving: 1gratinCalories: 300kcalCarbohydrates: 35gProtein: 6gFat: 18gSaturated Fat: 10gPolyunsaturated Fat: 0.5gMonounsaturated Fat: 6gCholesterol: 40mgSodium: 300mgPotassium: 600mgFiber: 5gSugar: 4gVitamin A: 160IUVitamin C: 25mgCalcium: 15mgIron: 8mg

Notes

Use a mandoline for even thickness when slicing vegetables. Lightly coat sliced beets with cream before baking to minimize bleeding.

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