👨‍🍳 作り方

1. 1

   Preheat your oven to 375°F (190°C). Grease a 9x13-inch baking dish with butter or cooking spray.

2. 2

   In a large skillet, melt 2 tablespoons of butter over medium heat. Add the sliced leeks and minced garlic, and sauté until softened, about 5 minutes.

3. 3

   In a medium saucepan, melt the remaining 2 tablespoons of butter over medium heat. Stir in the flour to form a roux, and cook for 1-2 minutes, stirring constantly. Gradually whisk in the milk until smooth. Stir in half of the grated Irish cheddar cheese until melted and smooth. Season with salt and pepper to taste.

4. 4

   Arrange half of the sliced potatoes in an even layer at the bottom of the prepared baking dish. Spread half of the sautéed leek mixture over the potatoes. Pour half of the cheese sauce over the leeks and potatoes, spreading it evenly. Repeat the layers with the remaining potatoes, leeks, and cheese sauce.

5. 5

   Cover the baking dish with aluminum foil and bake in the preheated oven for 45 minutes.

6. 6

   Remove the foil and sprinkle the remaining grated cheese over the top of the gratin. Bake for another 15-20 minutes, or until golden brown and bubbling.

   💡 プロのコツ: Baking uncovered allows the top to brown and crisp up.
7. 7

   Garnish with fresh chopped parsley, if desired, and serve hot.

   💡 プロのコツ: Let the gratin rest for a few minutes before serving to allow it to set slightly.