Sweet Potatoes Au Gratin Recipe
Sweet Potatoes Au Gratin Recipe photo by Taste of Home
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Sweet Potatoes Au Gratin Recipe

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4.5 5 7
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From Lake Geneva, Wisconsin, Patti Kirchhoff writes to recommend this rich sweet potato casserole.
TOTAL TIME: Prep: 10 min. Bake: 40 min.
MAKES:6-8 servings
TOTAL TIME: Prep: 10 min. Bake: 40 min.
MAKES: 6-8 servings


  • 2 large uncooked sweet potatoes, peeled and sliced 1/4 inch thick
  • 1 egg
  • 2 cups heavy whipping cream
  • 3/4 teaspoon salt
  • 1/8 teaspoon ground nutmeg
  • Pinch pepper
  • 3 tablespoons grated Parmesan cheese

Nutritional Facts

1 each: 270 calories, 23g fat (14g saturated fat), 110mg cholesterol, 291mg sodium, 13g carbohydrate (6g sugars, 1g fiber), 4g protein.


  1. Place potatoes in a greased 8-in. square baking dish. In a bowl, beat egg. Add cream, salt, nutmeg and pepper; mix well. Pour over potatoes. sprinkle with cheese. Bake, uncovered, at 375° for 40-45 minutes or until the potatoes are tender. Yield: 6-8 servings.
Originally published as Sweet Potatoes Au Gratin in Taste of Home October/November 1998, p18

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dkparker User ID: 1379185 240388
Reviewed Dec. 27, 2015

"I love this recipe. Have used it for the last 5 Thanksgiving and Christmas dinners and I am not allowed to not bring it. I slice the potatoes about 1/8" thick and use about 2 pounds of potatoes. I add a good 3 tbsp of parmesan after layering a third of the potatoes in the casserole, add another 3 tbsp of cheese on top of a second layer and the third 3 tbsp on top. (I like my potatoes cheesy!) Have found that I can cook the dish along side the turkey in a 325? oven but cook them for at least 2 or 2 1/2 hours. Have also been known to use 2 large eggs instead of one extra large egg."

Joscy User ID: 2694585 50909
Reviewed Sep. 19, 2013

"As is usual with TOH recipes, gladly rating *5*. Delicious, comforting. Next time will make half the recipe, for us **empty nesters**. Thank you for sharing!!"

jmkasprak User ID: 2880256 68748
Reviewed Nov. 18, 2010

"Maybe this dish should be baked covered. I had in the oven for over an hour to get the sweet potatoes tender, and by then the cream part was dried up and clumpy. I also would have put the parmesan cheese throughout the dish instead of just on top."

bameiboo User ID: 2470958 30712
Reviewed Mar. 31, 2010

"I tasted a similar dish at a Thanksgiving buffet. I was thrilled this tasted so much like it. I used 2 small-med sweet potatoes and 2 med white potatoes because I have lots of them to use up. The dish wasn't done in the time suggested but the sauce was curdled looking by the time it was done. Still it tasted great and I will make it again."

Ladykacy User ID: 2193235 48991
Reviewed Nov. 11, 2009

"I love this recipe. It is such a nice change from the surgar & nut recipies. That little bit of nutmeg adds the perfect finishing touch."

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