Cheesy Root Vegetable Gratin
This cheesy root vegetable gratin is a stunning and delicious side dish made with sweet potatoes, beets, and parsnips. Perfect for Thanksgiving or any special meal, it’s creamy, savory, and packed with flavor.
- Prep Time: 15 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 5 minutes
- Yield: 8 servings
- Category: Side Dish
- Method: Baking
- Cuisine: French
- Diet: Vegetarian
Ingredients
1 tablespoon unsalted butter, softened
1–2 long sweet potatoes (about 2 inches thick), peeled
3–4 large parsnips, ends trimmed and peeled
3–5 small beets, peeled
14 tablespoons heavy cream, divided (whole milk can be used, but results will be less creamy)
4 ounces grated Parmesan, divided
1 tablespoon fresh minced thyme, divided (plus more for garnish)
1 garlic clove, minced
1 ounce shredded Gruyere
Salt and pepper, to taste
Instructions
Preheat oven to 400°F (200°C). Grease a 3-quart baking dish with butter.
Slice sweet potatoes, parsnips, and beets into very thin rounds using a mandoline, and place each into separate bowls.
Pour 4 tablespoons of cream over the sweet potatoes and parsnips, and 2 tablespoons over the beets.
Add ½ ounce Parmesan and 1 teaspoon thyme to each bowl. Season generously with salt and pepper and toss to coat.
Pour ¼ cup of cream into the bottom of the baking dish. Sprinkle with ½ ounce Parmesan and the minced garlic.
Arrange the vegetables upright in rows, alternating sweet potatoes, parsnips, and beets to create a pattern.
Season the top with salt, pepper, and remaining Parmesan. Cover with foil.
Bake covered for 30 minutes, or until vegetables are soft.
Uncover and top with shredded Gruyere. Return to oven and bake 18–20 minutes, until cheese is melted and lightly browned.
Garnish with fresh thyme leaves and serve.
Notes
Makes 1 (3-quart) casserole.
Can be made 1 day ahead; refrigerate covered and bake with 5–7 minutes added time.
Beets may bleed when prepped in advance—minimize cream exposure to reduce this.
To avoid color bleeding, lightly coat beets in cream and avoid excess liquid in the baking dish.
Find it online: https://elladishes.com/cheesy-root-vegetable-gratin/
