Herbed Yukon Gold and Sweet Potato Gratin

Herbed Yukon Gold Sweet Potato Gratin
Photo: Jason Donnelly
Prep Time:
25 mins
Bake Time:
1 hr 15 mins
Stand Time:
10 mins
Total Time:
1 hr 50 mins


  • ½ cup chopped green onions

  • 1 tablespoon snipped fresh sage

  • 1 tablespoon snipped fresh thyme

  • 3 cloves garlic, minced

  • 1 teaspoon salt

  • ½ teaspoon ground black pepper

  • 1 ½ pound sweet potatoes, peeled and thinly sliced*

  • 1 ½ pound Yukon gold potatoes, peeled and thinly sliced*

  • ½ cup shredded Gruyère cheese or Swiss cheese (2 ounces)

  • ¼ cup finely shredded Parmesan cheese (1 ounce)

  • ½ cup chicken broth

  • ½ cup whipping cream

  • Fresh sage leaves (optional)


  1. Preheat oven to 350°F. Grease a 3-quart baking dish; set aside. In a small bowl combine green onions, snipped sage, thyme, garlic, salt, and pepper; set aside.

  2. In the prepared baking dish, layer half of the sweet potatoes and half of the Yukon gold potatoes, alternating rows if desired. Top with half of the herb mixture; sprinkle with half of the Gruyère cheese and half of the Parmesan cheese. Repeat layers. Pour broth and cream over ingredients in dish.

  3. Bake, covered, for 1 hour. Uncover and bake for 15 to 20 minutes more or until potatoes are tender and top is lightly browned. Let stand for 10 to 15 minutes before serving. If desired, garnish with sage leaves.


For ease of preparation, use a mandoline or a food processor fitted with a slicing blade to thinly slice the potatoes.

Nutrition Facts (per serving)

240 Calories
9g Fat
34g Carbs
7g Protein
Nutrition Facts
Servings Per Recipe 8
Calories 240
% Daily Value *
Total Fat 9g 12%
Saturated Fat 5g 25%
Cholesterol 32mg 11%
Sodium 480mg 21%
Total Carbohydrate 34g 12%
Total Sugars 4g
Protein 7g
Vitamin C 20.7mg 104%
Calcium 171.6mg 13%
Iron 1.4mg 8%
Potassium 692mg 15%
Folate, total 28.2mcg
Vitamin B-12 0.2mcg
Vitamin B-6 0.5mg

*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

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