Sweet Potato-Onion Gratin Recipe

Name: Sweet Potato-Onion Gratin
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 medium sweet potatoes, washed, peeled, sliced 1/4, inch thick rounds; 4 tablespoons fresh grated horseradish; 1 large vidalia onion, skin off, sliced 1/4 inch thick; 2 cups half and half; 2 cups gruyere swiss cheese, grated; 2 tablespoons fresh thyme leaves; 4 teaspoons Kosher salt; 2 teaspoons fresh ground black pepper; 2 tablespoons unsalted butter, melted; 1/4 cup canola oil

Servings: persons

2 medium sweet potatoes, washed, peeled, sliced 1/4, inch thick rounds
4 tablespoons fresh grated horseradish
1 large vidalia onion, skin off, sliced 1/4 inch thick
2 cups half and half
2 cups gruyere swiss cheese, grated
2 tablespoons fresh thyme leaves
4 teaspoons Kosher salt
2 teaspoons fresh ground black pepper
2 tablespoons unsalted butter, melted
1/4 cup canola oil

1
Preheat oven to 350u00b0F. Preheat Grill.
2
In a medium mixing bowl combine the half and half, fresh horseradish, fresh thyme leaves, half the salt and pepper, mix well, set aside.
3
Wash the sweet potatoes under cold running water, peel with a vegetable peeler. Take the sweet potatoes and vidalia onion, place on a medium cutting board, being careful take a chef knife and cut 1/4 inch thick round slices, place slices on a plate. Brush the sweet potatoes and onions slices with the canola oil, season with half of the salt and pepper, individually place the slices onto the grill, grill on each side until slightly charred and half cooked, place the grilled sweet potatoes and vidalia onion slices on paper towel lined plate to absorb in excess juices.
4
Place 4 to 6, 5 inch long gratin dishes onto a baking tray, brush the dishes with melted butter. Sprinkle 2/3 cup of the grated gruyere on the bottoms of the gratin dishes evenly. Layer 1/3 of the grilled sweet potatoes and vidalia onions on top of the gruyere evenly. Repeat this process 2 more times to create 3 even layers. Evenly pour the half and half mixture over the gratin. Finish top with extra grated gruyere cheese. Cover the gratins with foil and place into the 350 oven, bake for 35 to 40 minutes covered.
5
Uncover the gratins and bake 15 to 20 more minutes until the Gratin is golden brown and the sweet potatoes are tender.
6
Remove the gratins from the oven and allow to rest for 15 minutes prior to serving.

619

kcal

Calories

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

No additional tips available.

No specific allergen information. Please check the ingredient list for possible allergens.

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This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 10 ingredients. The key ingredients include: 2 medium sweet potatoes, washed, peeled, sliced 1/4, inch thick rounds, 4 tablespoons fresh grated horseradish, 1 large vidalia onion, skin off, sliced 1/4 inch thick, 2 cups half and half, and more.

Yes, Sweet Potato-Onion Gratin falls under the General category and is a great choice for this type of meal.

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Sweet Potato-Onion Gratin

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