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Cheesy Root Vegetable Gratin Recipe

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★★★★★

4.3 from 50 reviews

This Cheesy Root Vegetable Gratin layers tender slices of potatoes, sweet potatoes, carrots, and parsnips baked in a rich Gruyère and cheddar cheese sauce, creating a comforting and flavorful side dish perfect for any occasion.

Ingredients

Scale

Vegetables

  • 2 medium russet potatoes (peeled & thinly sliced)
  • 2 sweet potatoes (peeled & thinly sliced)
  • 2 parsnips (peeled & thinly sliced)
  • 2 carrots (peeled & thinly sliced)

Cheese Sauce

  • 3 tbsp butter
  • 3 tbsp all-purpose flour
  • 2 cups whole milk (warmed)
  • 1 cup heavy cream
  • 1 1/2 cups Gruyère cheese (shredded)
  • 1 cup sharp cheddar cheese (shredded)
  • 1 tsp garlic powder
  • 1 tsp salt (plus more to taste)
  • 1/2 tsp black pepper (freshly ground)

Garnish

  • 1/2 tsp fresh thyme leaves (optional garnish)

Instructions

  1. Preheat: Preheat oven to 375°F (190°C). Grease a large baking dish with butter or nonstick spray.
  2. Make roux: In a saucepan, melt butter over medium heat. Whisk in flour and cook 1–2 minutes to make a roux.
  3. Make sauce: Gradually whisk in warm milk and cream. Stir until sauce thickens, about 5 minutes.
  4. Add cheese and seasoning: Add Gruyère, cheddar, garlic powder, salt, and pepper. Stir until cheese is melted and sauce is smooth.
  5. Layer vegetables: Layer sliced potatoes, sweet potatoes, carrots, and parsnips in the baking dish, seasoning lightly between layers.
  6. Pour sauce and bake covered: Pour cheese sauce evenly over vegetables. Cover with foil and bake for 35 minutes.
  7. Bake uncovered: Remove foil and bake uncovered for 15–20 minutes, until golden and bubbly.
  8. Cool and garnish: Let cool slightly before serving. Garnish with fresh thyme if desired.

Notes

  • Use fresh thyme leaves as an optional garnish to enhance flavor and presentation.
  • Lightly season between layers of vegetables for balanced seasoning.
  • Allow to cool slightly before serving to let the gratin set for easier slicing.

Keywords: Cheesy Root Vegetable Gratin, Root Vegetable Casserole, Gruyère Cheese Gratin, Baked Vegetable Dish, Comfort Food Side

Find it online: http://foodarohub.com/cheesy-root-vegetable-gratin-recipe/