Sweet Potato Gratin

Sweet Potato Gratin arranges thin slices Hasselback style in a crumb topped creamy  gratin sauce. Which is flavored with  Parmesan cheese.
Sweet Potato Gratin

Sweet Potato Gratin

By Sue Lau |  Palatable Pastime

This post is sponsored on behalf of #FallFlavors. Our generous sponsors Melissa’s Produce and Nairn’s Oatcakes  have provided me complimentary products for recipe creatio. As always, all opinions are my own.

Sweet Potato Gratin is my recipe of the day with #FallFlavors week. This is not your usual marshmallow topped overly sweet casserole. And that is always a good thing.

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Sweet Potato Gratin

Layers of Creamy Flavor

Instead, this  gratin has thin slices of sweet potato. Those are in a buttery cream sauce flavored with Parmesan cheese. And topped with crisp  oat crumbs. It is very much a wholesome and hearty comfort food dish.

Perfect for your  autumn family dinners. Together with an entree and salad, it is a complete meal.

In addition to weekday  meals, it can be a great side dish for  a holiday  spread.

Melissa’s Sweet Potatoes

Melissa's Sweet Potatoes

Nairn’s Oat Crackers

Nairn's Oat Crackers

Potatoes are lined up on their edges in  a circular pattern. Then they are topped with buttery  cream and cheese. And covered and baked until tender.

Gratin Assembly

Once it  is  baked, it is time to add the buttered crumbs which  quickly brown  for a nice crisp  topping.

Gratin ready to add crumbs

Sweet Potato  Gratin

Sweet Potato Gratin

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Sweet  Potato Pie

First, I had this Southern favorite using sweet potatoes instead of pumpkin in the classic pie.

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Scalloped Potatoes

Then I have Scalloped Potatoes which have thinly sliced potatoes  in a light,  creamy cream cheese and  chive sauce, baked in  the style of a gratin.

Scalloped Potatoes

Spicy Bacon-Wrapped  Sweet Potato  Kebabs

Also, there is Spicy Bacon-Wrapped Sweet Potato Kebabs, which  are threaded onto skewers and roasted with a sweet and spicy seasoning.

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Cinnamon  Sweet Potato Muffins

Then I  have Cinnamon Sweet Potato Muffins which combine cooked sweet potatoes with cinnamon in a moist muffin batter for a perfect early autumn treat.

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Creamy  Potato and Apple Gratin

Finally, potatoes,  apples and a creamy cheese sauce combine to make a decadent side dish  for any  special  autumn supper or holiday meal.

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Sweet Potato  Gratin

Sweet Potato Gratin

Sue Lau
No ratings yet
Prep Time 15 minutes
Cook Time 1 hour 5 minutes
Course Side Dish
Cuisine American
Servings 6
Calories 225 kcal


  • sheet aluminum foil


  • 3 pounds Melissa's Japanese Murasaki sweet potatoes (or other sweet potatoes)
  • 1 cup shredded Parmesan cheese
  • 4 tablespoons melted butter
  • 1-1/4 cups heavy cream
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/2 cup crushed Nairn's Oat Crackers (2.2 ounces)
  • 2 tablespoons melted butter
  • 1/4 teaspoon grated nutmeg


  • Preheat oven to 400F.
  • Spray a Le Creuset braiser pan or round oven safe baking dish with nonstick cooking spray.
  • Peel potatoes and slice 1/8-inch thick, holding in cold water while you work to prevent discoloration.
  • Place sweet potato slices on their side in circular fashion, filling up the gratin dish.
  • Whisk together the Parmesan cheese, 4 tbsp. melted butter, heavy cream, salt and pepper and pour evenly over potatoes.
  • Cover with aluminum foil and bake in the preheated oven for one hour.
  • Mix crumbs, 2 tbsp. melted butter and nutmeg.
  • Remove foil, sprinkle with crumb mixture and bake 5-10 minutes more or until crumbs are browned


From the kitchen of palatablepastime.com


Calories: 225kcalCarbohydrates: 4gProtein: 7gFat: 21gSaturated Fat: 13gPolyunsaturated Fat: 1gMonounsaturated Fat: 6gTrans Fat: 1gCholesterol: 55mgSodium: 609mgPotassium: 35mgFiber: 1gSugar: 1gVitamin A: 627IUVitamin C: 1mgCalcium: 216mgIron: 1mg
Keyword savory sweet potatoes
Tried this recipe?Let us know how it was!

Sweet Potato Gratin

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Special Thanks:

Finally, Thank you to our sponsors Millican Pecan Company, Dixie Crystals, Melissa’s Produce, Taylor & Colledge, Republic of Tea, and Nairn’s for providing product.

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