Forktionary

Sweet White Potato Gratin Recipe

This irresistible Sweet White Potato Gratin elevates a classic comfort food with a crunchy twist! Inspired by Williams Sonoma, this simplified recipe uses readily available ingredients like cheddar cheese and dried thyme, while adding a delightful layer of crushed French-fried onions for extra flavor and texture. A creamy blend of cheddar and goat cheese (or feta) creates a rich and savory sauce that perfectly complements the tender sweet and white potatoes. Get ready for a show-stopping side dish that's perfect for holiday gatherings or a cozy weeknight dinner. Skip the powdered parmesan – we insist on the real deal!

Prep Time 25 mins
Cook Time 130 mins
Calories 365.8 kcal
Protein 25g
Rating 5.0 (2 Reviews)
Sweet White Potato Gratin 17

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Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Sweet White Potato Gratin

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How to Make Sweet White Potato Gratin

  1. Preheat oven to 350°F (175°C).
  2. Lightly grease a 9x13-inch baking dish.
  3. Peel and thinly slice 2 pounds of white potatoes and 1 pound of sweet potatoes using a mandoline or food processor.
  4. Arrange half of the potato slices randomly in the prepared baking dish.
  5. In a medium bowl, combine 1 cup shredded cheddar cheese, 1/2 cup crumbled goat cheese (or feta), 1 teaspoon dried thyme, 1 teaspoon salt, and 1/2 teaspoon black pepper.
  6. Sprinkle half of the cheese mixture evenly over the potatoes.
  7. Sprinkle 2 tablespoons of all-purpose flour evenly over the cheese layer.
  8. Add the remaining potato slices, and sprinkle the remaining cheese mixture on top.
  9. Pour 1 cup chicken broth and 1/2 cup heavy cream over the potatoes.
  10. Cover the baking dish with aluminum foil.
  11. Bake for 90 minutes, or until the potatoes are tender.
  12. Meanwhile, crush 1 cup French-fried onions.
  13. Remove the baking dish from the oven and uncover.
  14. Sprinkle the crushed onions evenly over the top.
  15. Return to the oven and bake, uncovered, for another 10 minutes, or until the onions are golden brown and the gratin is bubbly.
  16. Remove from the oven and let stand for 20 minutes before serving.

Nutrition Information (Approximate per serving)

Sodium

32 g

Sugar

15g

Fat

70g

Carbs

9g

Recipe Categories (Choose a category and find related recipes!)

Sweets & Sides Side Dishes The Americas American Southern Vegetarian Gluten Free Fall Recipes Holiday Recipes Baking

Recipe Tags (Choose a tag and find related recipes!)

Time To Make Course Main Ingredient Cuisine Preparation Occasion Yams Sweet Potatoes North American Side Dishes Eggs Dairy Potatoes Vegetables American European Dinner Party Holiday Event Cheese Food Processor Blender Dietary Christmas Thanksgiving Equipment Small Appliance Presentation Served Hot 4 Hours Or Less