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Gruyère Scalloped Potatoes with Crispy Shallots

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Gruyère scalloped potatoes with crispy shallots are a luxurious and comforting side dish featuring thin layers of potatoes baked in a creamy Gruyère cheese sauce and topped with golden, crispy shallots. Perfect for holidays or elegant dinners.

Ingredients

  • 2 lbs Yukon gold or russet potatoes, thinly sliced
  • 2 tbsp unsalted butter
  • 2 cloves garlic, minced
  • 1 cup heavy cream
  • 1/2 cup whole milk
  • 2 cups Gruyère cheese, shredded (divided)
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1 tsp fresh thyme leaves (optional)
  • For the crispy shallots:
  • 23 shallots, thinly sliced
  • 1/4 cup all-purpose flour
  • 1/2 tsp salt
  • Vegetable oil (for frying)

Instructions

  1. Preheat oven to 375°F (190°C). Grease a baking dish with butter.
  2. In a saucepan, melt butter over medium heat. Sauté garlic until fragrant, about 1 minute.
  3. Pour in cream and milk, season with salt and pepper, and stir in 1 cup of the Gruyère until melted and smooth.
  4. Layer half of the sliced potatoes in the baking dish. Pour over half the cheese sauce. Repeat with remaining potatoes and sauce.
  5. Sprinkle the remaining 1 cup of Gruyère on top. Cover with foil and bake for 40 minutes.
  6. Uncover and bake for an additional 15–20 minutes, until the top is golden and bubbly.
  7. While baking, toss sliced shallots in flour and salt. Heat oil in a pan and fry shallots until crispy and golden. Drain on paper towels.
  8. Let the potatoes rest for 5–10 minutes after baking. Top with crispy shallots and thyme before serving.

Notes

  • Mix in Parmesan or white cheddar for extra cheesy flavor.
  • Use herbs like rosemary or sage for a more fragrant sauce.
  • Try sweet potatoes or mixed root vegetables for variety.
  • Store-bought crispy onions can be used as a shortcut for the topping.
  • To make gluten-free, substitute flour with cornstarch and use a GF flour blend for the shallots.

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