Basic Potatoes Au Gratin Recipe

Ingredients for Basic Potatoes Au Gratin

• 2 lbs Yukon Gold potatoes, peeled and thinly sliced
• 1 medium onion, chopped
• Garlic Cloves
• Olive Oil
• All Purpose Flour
• 1 teaspoon salt
• Ground Black Pepper
• 3 cups whole milk
• Parmesan Cheese

How to Make Basic Potatoes Au Gratin

1. Preheat oven to 350°F (175°C).
2. Peel and thinly slice 2 lbs Yukon Gold potatoes. Cook potatoes in a large pot of lightly salted boiling water for 5 minutes, until slightly softened. Drain and set aside.
3. While potatoes cook, prepare the sauce: In a medium saucepan, melt 2 tablespoons of butter over medium heat. Add 1 medium onion, chopped, and 2 cloves garlic, minced, and cook until softened, about 5 minutes.
4. Stir in 1/4 cup all-purpose flour, 1 teaspoon salt, and 1/2 teaspoon black pepper. Cook for 1 minute, stirring constantly.
5. Gradually whisk in 3 cups whole milk, stirring until smooth and thickened. Bring to a simmer, stirring occasionally, until sauce is thick and bubbly (about 5 minutes).
6. In a greased 2 1/2-quart baking dish, layer half of the potatoes.
7. Pour half of the cheese sauce over the potatoes and sprinkle with 1/2 cup grated Gruyère cheese.
8. Repeat layers with remaining potatoes, sauce, and cheese (another 1/2 cup Gruyère).
9. Bake covered for 35 minutes. Uncover and bake for another 35 minutes, or until golden brown and bubbly.
10. Let stand for 10 minutes before serving. Enjoy!