Description
A comforting and classic recipe for creamy and cheesy au gratin potatoes, perfect as a side dish for any meal. Made with Yukon Gold potatoes, rich dairy sauce, and a blend of flavorful cheeses.
Ingredients
Scale
- 2 ½ pounds Yukon Gold potatoes, scrubbed and thinly sliced (about 1/8-inch thick)
- 1 tablespoon unsalted butter, plus more for greasing
- 1 medium yellow onion, thinly sliced
- 2 cloves garlic, minced
- 2 cups whole milk
- 1 cup heavy cream
- 1 teaspoon salt, plus more to taste
- ½ teaspoon black pepper, plus more to taste
- ¼ teaspoon nutmeg (optional)
- 2 cups shredded Gruyère cheese, divided
- 1 cup shredded sharp cheddar cheese, divided
Instructions
- 1. Preheat oven to 375°F (190°C). Butter a 9×13 inch baking dish.
- 2. Melt butter in a skillet over medium heat. Add onion and cook until softened (5-7 mins). Add garlic and cook 1 min more.
- 3. Add milk and cream to skillet. Bring to a simmer, then reduce heat to low and cook 5 mins. Stir in salt, pepper, and nutmeg (if using).
- 4. Whisk in 1 ½ cups Gruyère and ½ cup cheddar until melted and smooth. Taste and adjust seasoning.
- 5. Arrange half the potato slices in the prepared dish.
- 6. Pour half the cheese sauce over the potatoes.
- 7. Layer the remaining potatoes over the sauce.
- 8. Pour the rest of the sauce over the second potato layer.
- 9. Sprinkle remaining ½ cup Gruyère and ½ cup cheddar on top.
- 10. Cover dish tightly with foil and bake for 45 minutes.
- 11. Remove foil and bake for another 25-35 minutes, until potatoes are tender and topping is golden brown.
- 12. Let stand for 10-15 minutes before serving.
Notes
Store cooled leftovers in an airtight container in the refrigerator for up to 3-4 days. Reheat in the oven at 350°F (175°C) covered for 15-25 minutes, or uncovered for the last 5-10 minutes for a crispier top.
- Prep Time: 25 minutes
- Cook Time: 70 minutes
- Category: Side Dish
- Method: Baked
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 500
- Sugar: 5g
- Sodium: 800mg
- Fat: 35g
- Carbohydrates: 30g
- Fiber: 3g
- Protein: 18g