Recipes and Cooking Herbed Yukon Gold and Sweet Potato Gratin 4.3 (6) Add your rating & review By BHG Test Kitchen BHG Test Kitchen The Better Homes & Gardens Test Kitchen has been in continuous operation for nearly 100 years, developing and testing practical, reliable recipes that readers can enjoy at home. The Test Kitchen team includes culinary specialists, food stylists, registered and licensed nutritionists, and other experts with Bachelor of Science degrees in food science, food and nutrition, or culinary arts. Together, the team tests more than 2,500 recipes, produces more than 2,500 food images, and creates more than 1,000 food videos each year in the state-of-the-art test kitchen. Learn about BHG's Editorial Process Published on June 2, 2011 Print Rate It Share Share Tweet Pin Email Photo: Jason Donnelly Prep Time: 25 mins Bake Time: 1 hrs 15 mins Stand Time: 10 mins Total Time: 1 hrs 50 mins Servings: 8 Jump to Nutrition Facts Ingredients 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) Directions 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. 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. 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. *Tip: For ease of preparation, use a mandoline or a food processor fitted with a slicing blade to thinly slice the potatoes. Rate it Print Nutrition Facts (per serving) 240 Calories 9g Fat 34g Carbs 7g Protein Show Full Nutrition Label Hide Full Nutrition Label 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.