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Cheesy Sweet Potato Gratin Recipe

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4.3 from 89 reviews

  • Author: Maggie
  • Total Time: 1 hour 20 minutes
  • Yield: 10 servings
  • Diet: Vegetarian

Description

A delicious and comforting Cheesy Sweet Potato Gratin featuring thinly sliced sweet potatoes layered with a savory shallot and garlic sauce, infused with nutmeg and thyme, topped with melted Gruyere cheese. Baked to golden perfection, this dish is perfect as a hearty side or main course.

Ingredients

Sweet Potatoes

  • 3 lbs sweet potatoes, peeled

Sauce

  • 2 tbsp avocado oil
  • 2 shallots, diced
  • 2 cloves garlic, minced
  • 1/2 tsp nutmeg
  • 1 tsp dried thyme
  • 1 tsp salt
  • 1/4 tsp pepper
  • 1/4 cup almond milk (or regular milk)

Topping

  • 6 oz Gruyere cheese, shredded

Instructions

  1. Preheat Oven: Preheat your oven to 350°F (175°C) and grease an 8×11 inch baking dish to prevent sticking and help with easy cleanup.
  2. Slice Sweet Potatoes: Peel and thinly slice the sweet potatoes to about 1/8 inch thickness. Arrange the slices closely and slightly overlapping in the prepared baking dish to create even layers.
  3. Prepare Sauce: In a saucepan over medium-high heat, warm the avocado oil and sauté the diced shallots for about two minutes until fragrant. Add minced garlic, nutmeg, dried thyme, salt, and pepper, cooking for an additional 4-5 minutes until the shallots are softened and the flavors meld.
  4. Add Almond Milk: Remove the pan from heat and stir in the almond milk, creating a creamy, spiced sauce. Pour this mixture evenly over the layered sweet potatoes, ensuring every slice is coated well.
  5. Add Cheese: Sprinkle the shredded Gruyere cheese evenly over the top of the sweet potato layers to add a rich, melty topping.
  6. Bake Covered: Cover the baking dish with foil to keep moisture in, then bake for 40 minutes to allow the potatoes to cook through and absorb flavors.
  7. Bake Uncovered: Remove the foil and bake for an additional 20 minutes to let the cheese brown slightly and the dish firm up.
  8. Broil Cheese: Turn the oven to broil and place the dish under the broiler for about 4 minutes, watching carefully to brown the cheese perfectly without burning.
  9. Rest and Serve: Let the gratin sit at room temperature for 20 minutes to set before serving, which helps the dish firm and makes it easier to slice and enjoy.

Notes

  • To save time, use a mandoline slicer to achieve even, thin potato slices.
  • Almond milk can be substituted with regular milk or cream for a richer texture.
  • Gruyere cheese can be replaced with Swiss or a mild cheddar as alternatives.
  • Serve as a side dish to roasted meats or as a vegetarian main course.
  • Make-ahead option: Prepare the gratin a day in advance, refrigerate, and bake before serving.
  • Prep Time: 20 minutes
  • Cook Time: 1 hour
  • Category: Side Dish
  • Method: Baking
  • Cuisine: French

Find it online: https://recipeworthsaving.com/cheesy-sweet-potato-gratin-recipe/