Sweet Potato and Sage Gratin

Sweet Potato and Sage Gratin
Sweet Potato and Sage Gratin

Editor's Note: There's no better flavor for fall than sweet potatoes. This Sweet Potato and Sage Gratin is simple to make, and it uses the hearty flavors of this fall legume to its fullest potential. This recipe would make a great side dish for Thanksgiving and a lovely addition to any Christmas dinner menu.

Look no further for an out-of-the-ordinary sweet potato dish for holiday entertaining.

Makes6 servings

Preparation Time20 min

Preparation Time - Text20 mins

Cooking MethodRoasting



Make Ahead RecipeYes

OccasionCasual Dinner Party, Formal Dinner Party

Recipe CourseStarch

Dietary ConsiderationVegetarian

Five Ingredients or LessYes



Taste and TextureButtery, Rich, Savory

Type of DishGratin


  • 1¼ cups heavy cream
  • 2 tbsp chopped sage
  • 1/8 tsp freshly grated nutmeg
  • Salt and freshly ground black pepper
  • 4 tbsp butter, cut into small cubes plus more for the dish
  • 2¼ lb (1kg) orange-fleshed sweet potatoes, thinly sliced


  1. 10 in (25cm) oval ovenproof gratin dish

  2. Prepare ahead

  3. Cover and refrigerate the cooked gratin for up to 2 days; reheat before serving.

  4. Preheat the oven to 400°F (200°C). Whisk the cream, sage, and nutmeg together and season with salt and pepper. Butter an ovenproof gratin dish. Layer the sweet potatoes in the dish, pouring in the cream mixture as you go, and finishing with the cream.

  5. Cover with aluminum foil and bake the for 1 hour, or until the gratin is completely tender when pierced in the center with the tip of a sharp knife.

  6. Good with roast pork, ham, or turkey.

  7. Variation:

  8. Gruyére Gratin

  9. Sprinkle with ½ cup shredded Gruyére cheese before baking. Serve with a crisp green salad to make a vegetarian meal.


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Easy and delicious, but rich for an everyday meal. Nice holiday dish for when there is a lot on the table, and everyone eats smaller portions of each.

We made this for Thanksgiving dinner. Not only is it super easy, but it is very delicious.


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