Description
Creamy and indulgent, these Au Gratin Potatoes are a classic side dish perfect for any gathering. Layers of thinly sliced russet potatoes are baked in a rich and cheesy sauce until golden and bubbly. A comfort food favorite that pairs well with any main course.
Ingredients
For the Au Gratin Potatoes:
- 1 small yellow onion, finely diced
- 3 tablespoons salted butter
- 4 cloves fresh garlic, minced
- 2 teaspoons fresh thyme leaves
- 2 cups heavy cream
- ½ cup milk
- 2 cups shredded gruyere cheese
- ½ cup grated Parmesan cheese
- ¼ teaspoon salt
- ¼ teaspoon pepper
- 2 ½ lbs. russet potatoes
- Chives, to garnish
Instructions
- Preheat the oven: Preheat the oven to 350°F.
- Caramelize onions: Cook onions and butter until caramelized. Add garlic and thyme.
- Prepare cream mixture: Combine heavy cream and milk, then add to the onion mixture.
- Add cheeses: Gradually stir in gruyere and Parmesan cheese, salt, and pepper.
- Slice potatoes: Slice potatoes thinly using a mandoline slicer.
- Layer potatoes and sauce: Layer potatoes and sauce in a baking dish. Repeat.
- Bake: Cover and bake for 1 hour, then uncover and bake for an additional 30 minutes.
- Rest and serve: Let the dish rest before serving. Garnish with chives.
Notes
- Use russet potatoes for best results.
- Slice the potatoes thinly for even cooking.
- Use a mandoline slicer for precision.
- Use fresh garlic for optimal flavor.
- Shred cheese from a block for better melting.
- Make ahead for convenience.
- Store leftovers properly for freshness.
- Prep Time: 20 minutes
- Cook Time: 2 hours
- Category: Side Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 355 kcal
- Sugar: 3g
- Sodium: 321mg
- Fat: 26g
- Saturated Fat: 16g
- Unsaturated Fat: 8g
- Trans Fat: 0.1g
- Carbohydrates: 21g
- Fiber: 1g
- Protein: 11g
- Cholesterol: 81mg
