Potatoes Au Gratin is a classic dish that combines thinly sliced potatoes with a rich, creamy sauce and a golden, cheesy topping. This dish is perfect for family dinners, holidays, or any time you want to indulge in a comforting and flavorful side dish. Follow this recipe to create a delicious and elegant Potatoes Au Gratin that will impress your guests.

What is Potatoes Au Gratin?
Potatoes Au Gratin is a French dish that consists of thinly sliced potatoes baked in a creamy sauce, often with cheese, until they are tender and the top is golden and bubbly. The dish is known for its rich and indulgent flavors, making it a popular choice for special occasions and gatherings.
Ingredients List for Potatoes Au Gratin
To make this delicious dish, youโll need the following ingredients:
- Potatoes: 4 large russet or Yukon gold potatoes, peeled and thinly sliced
- Heavy Cream: 2 cups
- Milk: 1 cup
- Butter: 4 tablespoons
- All-Purpose Flour: 2 tablespoons
- Garlic: 2 cloves, minced
- Cheddar Cheese: 2 cups, shredded
- Parmesan Cheese: ยฝ cup, grated
- Salt and Pepper: To taste
- Nutmeg: ยผ teaspoon (optional)
- Fresh Thyme: 1 teaspoon, chopped (optional)
- Breadcrumbs: ยผ cup (optional, for topping)
- Fresh Parsley: For garnish
Substitutions and Variations
Customize your Potatoes Au Gratin with these substitutions and variations:
- Cheese: Use Gruyere, Swiss, or a blend of your favorite cheeses for a different flavor profile.
- Milk and Cream: Substitute with half-and-half or a non-dairy milk alternative for a lighter or dairy-free version.
- Garlic: Add more garlic or use garlic powder for a stronger garlic flavor.
- Herbs: Experiment with different herbs like rosemary, chives, or tarragon.
- Breadcrumbs: For a gluten-free version, use gluten-free breadcrumbs or omit the topping entirely.
Step-by-Step Cooking Instructions
Follow these detailed steps to prepare your Potatoes Au Gratin:
- Preheat the Oven: Preheat your oven to 375ยฐF (190ยฐC). Grease a 9x13-inch baking dish with butter or cooking spray.
- Prepare the Potatoes: Peel and thinly slice the potatoes, aiming for uniform slices about โ inch thick. A mandoline slicer works well for this.
- Make the Cream Sauce:
- In a medium saucepan, melt the butter over medium heat.
- Add the minced garlic and cook until fragrant, about 1 minute.
- Stir in the flour and cook for another 1-2 minutes until it forms a smooth paste (roux).
- Gradually whisk in the heavy cream and milk, ensuring there are no lumps.
- Continue to cook, stirring constantly, until the mixture thickens and begins to bubble.
- Remove from heat and stir in 1 ยฝ cups of shredded cheddar cheese, ยผ cup of grated Parmesan cheese, salt, pepper, nutmeg, and fresh thyme if using. Mix until the cheese is melted and the sauce is smooth.
- Assemble the Dish:
- Arrange half of the sliced potatoes in an even layer in the prepared baking dish.
- Pour half of the cheese sauce over the potatoes, spreading it evenly.
- Add the remaining potato slices on top and pour the rest of the cheese sauce over them.
- Sprinkle the remaining ยฝ cup of shredded cheddar cheese, ยผ cup of grated Parmesan cheese, and breadcrumbs if using on top.
- Bake the Potatoes:
- Cover the baking dish with aluminum foil and bake in the preheated oven for 30 minutes.
- Remove the foil and continue baking for an additional 25-30 minutes, or until the potatoes are tender and the top is golden brown and bubbly.
- Garnish and Serve: Remove from the oven and let the dish cool for a few minutes. Garnish with fresh parsley before serving.
How to Cook Potatoes Au Gratin: A Step-by-Step Guide
Creating the perfect Potatoes Au Gratin involves a few key steps. Hereโs a detailed guide to ensure your dish turns out perfectly:
- Selecting the Potatoes: Choose starchy potatoes like russet or Yukon gold for the creamiest texture.
- Slicing Evenly: Use a mandoline or a sharp knife to slice the potatoes thinly and uniformly. This ensures even cooking.
- Making the Roux: Cooking the flour and butter together (roux) is essential for a smooth sauce. Whisk constantly to avoid lumps.
- Adding the Cream and Milk Slowly: Gradually add the cream and milk to the roux while whisking to prevent lumps and create a smooth sauce.
- Layering the Potatoes: Arrange the potato slices in even layers to ensure every bite is coated with the creamy sauce.
- Baking Time: Covering the dish with foil initially helps the potatoes cook through without drying out. Removing the foil later allows the top to brown and become crispy.
Common Mistakes to Avoid
Avoid these common mistakes to ensure your Potatoes Au Gratin turn out perfect every time:
- Overcooking the Sauce: This can make it too thick. Remove from heat as soon as it thickens and starts to bubble.
- Undercooking the Potatoes: Ensure the potatoes are fully cooked and tender by baking until a knife easily pierces through them.
- Not Seasoning Enough: Potatoes can be bland without proper seasoning. Taste and adjust the sauce as needed.
- Burning the Topping: Keep an eye on the dish in the oven. Cover with foil if the topping browns too quickly.
Serving and Presentation Tips
Enhance your Potatoes Au Gratin with these serving and presentation tips:
- Use a Decorative Baking Dish: A nice dish can make your gratin look more appealing.
- Garnish Generously: Sprinkle fresh herbs like parsley or chives on top for a pop of color.
- Serve Hot: Potatoes Au Gratin are best enjoyed hot and fresh from the oven.
How to Serve Potatoes Au Gratin
Here are some ideas for serving your Potatoes Au Gratin:
- As a Side Dish: Perfect alongside roasted meats, poultry, or grilled vegetables.
- At a Potluck: This dish is a crowd-pleaser and easy to transport. Keep it warm until serving.
- For Holidays: A great addition to holiday meals, especially Thanksgiving and Christmas.
Presentation Ideas for Potatoes Au Gratin
Make your Potatoes Au Gratin visually appealing with these presentation ideas:
- Layered Look: Use a clear glass baking dish to show off the layers of potatoes and cheese sauce.
- Colorful Garnishes: Top with colorful vegetables or herbs to brighten up the dish.
- Individual Portions: Serve in small ramekins or mini cast-iron skillets for a cute and portable option.
Potatoes Au Gratin Recipe Tips
Here are some additional tips to help you perfect your Potatoes Au Gratin:
- Make Ahead: Prepare the dish up to the baking step, cover, and refrigerate. Bake when ready to serve.
- Reheat Gently: If reheating leftovers, do so in the oven to maintain the creamy texture and prevent the cheese from becoming rubbery.
- Experiment with Add-Ins: Add cooked bacon, ham, or sautรฉed mushrooms to the layers for extra flavor and texture.
Frequently Asked Questions (FAQs)
Q: Can I use pre-shredded cheese? A: Yes, but shredding your own cheese is recommended as pre-shredded cheese often contains anti-caking agents that can affect the sauceโs texture.
Q: How do I store leftovers? A: Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven for best results.
Q: Can I freeze Potatoes Au Gratin? A: Itโs not recommended to freeze this dish, as the texture of the potatoes and cheese sauce may change upon thawing and reheating.
Q: What can I use instead of heavy cream? A: You can use half-and-half or a non-dairy milk alternative, but the sauce may be less rich and creamy.
Q: Can I make this dish vegan? A: Yes, use plant-based butter, milk, and cheese alternatives, and skip the Parmesan cheese or use a vegan version.
Conclusion
This Potatoes Au Gratin recipe is a must-try for anyone who loves creamy, cheesy dishes. With its rich sauce, tender potatoes, and golden topping, itโs sure to become a family favorite. Whether you're serving it for a special occasion or a simple weeknight dinner, this comforting dish will be a hit. Try this recipe today and enjoy the ultimate in cheesy potato goodness!
PrintPotatoes Au Gratin Recipe
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Discover the ultimate Potatoes Au Gratin recipe with layers of thinly sliced russet or Yukon gold potatoes, rich heavy cream, and milk. Infused with garlic, cheddar, and Parmesan cheese, this baked dish is perfectly seasoned and optionally topped with breadcrumbs for a crispy finish. Ideal for festive dinners, potlucks, or weeknight meals, this creamy, cheesy delight will be a family favorite.
- Prep Time: 20 minutes
- Cook Time: 1 hour
- Total Time: 1 hour 20 minutes
- Yield: Serves 6-8 1x
- Category: Side Dish
- Method: Baking
- Cuisine: French
- Diet: Vegetarian
Ingredients
- 4 large russet or Yukon gold potatoes, peeled and thinly sliced
- 2 cups heavy cream
- 1 cup milk
- 4 tablespoons butter
- 2 tablespoons all-purpose flour
- 2 cloves garlic, minced
- 2 cups shredded cheddar cheese
- ยฝ cup grated Parmesan cheese
- Salt and pepper to taste
- ยผ teaspoon nutmeg (optional)
- 1 teaspoon chopped fresh thyme (optional)
- ยผ cup breadcrumbs (optional, for topping)
- Fresh parsley for garnish
Instructions
- Preheat oven to 375ยฐF (190ยฐC).
- In a saucepan, melt butter over medium heat. Add minced garlic and sautรฉ until fragrant.
- Stir in flour to form a roux. Gradually whisk in heavy cream and milk, cooking until the mixture thickens.
- Remove from heat and stir in cheddar cheese, Parmesan cheese, salt, pepper, and nutmeg.
- In a greased baking dish, arrange a layer of thinly sliced potatoes. Pour a portion of the cheese sauce over the potatoes. Repeat layers until all potatoes and sauce are used.
- Sprinkle breadcrumbs and fresh thyme over the top, if using.
- Cover with foil and bake for 45 minutes. Remove foil and bake for an additional 15 minutes or until golden and bubbly.
- Garnish with fresh parsley before serving.
Notes
- For an extra creamy sauce, use a combination of half-and-half instead of milk and cream.
- Adjust seasoning to taste.
- Leftovers can be reheated in the oven to retain crispness.
Nutrition
- Serving Size: 1 cup
- Calories: 350
- Sugar: 3g
- Sodium: 480mg
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