This Sweet Potato Gratin is a show-stopping side dish for any holiday! Thinly sliced sweet potatoes bake in a creamy herbed garlic sauce with nutty Gruyère and Parmesan until tender and golden.Irresistible crispy edges guaranteed! Give sweet potatoes a savory spin with this gratin recipe! Sweet potatoes usually show up on the Thanksgiving table with lots of brown sugar, cinnamon, and marshmallows.Personally, I love taking them in a more savory direction.

Here, the earthy sweetness of sweet potatoes is balanced by garlic, fresh thyme,  and plenty of cheese.While my family will always demand my Sweet Potato Casserole every Thanksgiving, this sweet potato gratin is going on the table this year right next to it! Ingredients and Substitutions You’ll find the full list of ingredients in the recipe card below, but here are some notes to keep in mind.Unsalted Butter.

Let the butter soften so it’s easy to spread into the bottom of the pan.Sweet Potatoes.While you can absolutely make this gratin with regular orange sweet potatoes, using a mix of orange, purple, and white varieties turns it into a showstopper.

Choose potatoes that are relatively similar in diameter so the slices fit together neatly.Heavy Cream.You can use a combination of heavy cream and half-and-half for a somewhat lighter version, although the finished sauce will be less rich and creamy.

(I say, if it’s a holiday—go all out!) Fresh Thyme.Thyme is a lov

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