Mashed Rutabagas Au Gratin

Enjoy a unique seasonal spin on classic potatoes au gratin with Mashed Rutabagas Au Gratin. Boiled and mashed rutabagas combined with rich Gruyere and a crunchy garlic crouton topping make this casserole-style dish a crowd-pleaser.

Makes: 6 servings
Prep Time: 30 minutes
Cook Time: 40 minutes
Total Time: 1 hour 10 minutes
Recipe Created By: Mary Carter
Featured In: Tennessee Home & Farm

Ingredients

  • 1 large or 2 medium rutabagas (about 2 pounds)
  • ¼ cup butter, divided, plus more for coating baking dish
  • 1 yellow onion, chopped
  • ½ cup chicken stock
  • ½ cup whole milk
  • ½ cup Gruyere cheese, shredded
  • 1 teaspoon salt
  • ⅛ teaspoon freshly ground black pepper
  • 2 cups garlic croutons
  • Fresh parsley, chopped (optional)

Instructions

  1. Peel rutabagas and place them in a large pot. Fill pot with enough water to completely cover them. Bring water to a boil, then reduce heat to medium, cover and simmer for about 20 minutes, or until rutabagas are very soft. Remove rutabagas from water and set them aside to cool.
  2. Preheat oven to 350 degrees. Coat a large baking dish with butter and set aside.
  3. Heat 2 tablespoons butter in a large skillet over medium-high heat. Saute onions in butter until translucent.
  4. Once rutabagas are cool enough to handle, cut them into 1-inch pieces and place them in a large bowl. Add the onion, stock, milk, cheese, salt and pepper to the bowl and use a fork to mash together until completely combined and the rutabagas are the consistency of mashed potatoes.
  5. Spoon mixture into the prepared baking dish. Arrange croutons over the top and drizzle with 2 tablespoons melted butter.
  6. Bake for 20 minutes, until heated through and the cheese is melted. Garnish with parsley before serving, if desired.

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