Sweet Potato Gratin Recipe

Indulge in this creamy, dreamy Sweet Potato Gratin, a recipe perfected by the chef of a renowned golf club! Once a closely guarded secret with measurements left entirely 'to taste,' this updated version delivers the same rave-worthy results with precise instructions. Get ready for perfectly tender sweet potatoes baked to golden perfection in a rich, flavorful sauce. This elegant side dish is perfect for holiday gatherings or a special weeknight dinner.

Prep Time 20 mins
Cook Time 80 mins
Calories 142.9 kcal
Protein 2g
Rating 4.3 (6 Reviews)
Sweet Potato Gratin 36

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Recipe Author

Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Sweet Potato Gratin

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How to Make Sweet Potato Gratin

  1. Preheat oven to 375°F (190°C).
  2. Peel and thinly slice 2 lbs (900g) sweet potatoes.
  3. In a large bowl, melt 6 tablespoons (85g) butter.
  4. Add 1/2 cup (100g) all-purpose flour and whisk until smooth.
  5. Gradually whisk in 3 cups (720ml) whole milk until smooth and no lumps remain.
  6. Stir in 1 teaspoon ground nutmeg, 1/2 teaspoon salt, and 1/4 teaspoon black pepper.
  7. Layer half of the sweet potato slices in a greased 9x13 inch baking dish.
  8. Pour half of the cream sauce over the sweet potatoes.
  9. Repeat layers with remaining sweet potatoes and cream sauce.
  10. Top with 1/2 cup (50g) grated Gruyere cheese (or another cheese of your choice).
  11. Bake for 60-80 minutes, or until sweet potatoes are tender and the top is golden brown and bubbly.
  12. Let stand for 10 minutes before serving.

Nutrition Information (Approximate per serving)

Sodium

12 g

Sugar

6g

Fat

17g

Carbs

7g

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