Potatoes Au Gratin

Introduction

Creamy Potatoes Au Gratin is your ticket to elevating any meal with rich, cheesy decadence! This classic comfort dish takes thinly sliced potatoes and layers them with a velvety, garlicky cream sauce, all topped with bubbly, golden-brown cheese. Every bite is an irresistible mix of tender potatoes and gooey, melty goodness—perfect for cozy family dinners or special holiday feasts.

The first time I made this for a gathering, the aroma alone had everyone hovering around the oven in anticipation. And when I pulled out that bubbling, golden masterpiece? Let’s just say there were no leftovers! The beauty of Potatoes Au Gratin lies in its versatility—you can keep it classic with sharp cheddar and Parmesan or experiment with gruyère, gouda, or even a touch of blue cheese for a bold twist.

Despite its elegant appearance, this dish is surprisingly easy to make. A mandoline or sharp knife ensures perfectly thin slices, while a simple cream mixture and a handful of cheese transform humble potatoes into a showstopping side. Whether you’re serving it alongside a holiday roast or as a comfort-food indulgence on a chilly evening, Potatoes Au Gratin is always a crowd-pleaser!

Perfect for:

  • Holiday dinners
  • Sunday family meals
  • Special occasions
  • Potluck gatherings
  • Comfort food lovers

Why You’ll Love This Potatoes Au Gratin

Here’s why Potatoes Au Gratin will become your new favorite side dish:

  • Creamy and Cheesy: The velvety sauce made from cream, butter, and cheese creates an irresistibly rich and satisfying texture.
  • Golden and Crispy Top: Baking the dish until golden brown results in a crispy, cheesy crust that adds a delightful contrast to the creamy interior.
  • Simple Ingredients, Big Flavor: With just a handful of pantry staples, you can create an elegant dish that tastes like it came from a fine restaurant.
  • Make-Ahead Friendly: You can assemble it ahead of time and bake it when ready, making it a stress-free dish for entertaining.
  • Customizable: Easily adapt the recipe with different cheeses, herbs, or add-ins like bacon or caramelized onions.

Preparation and Cooking Time

  • Total Time: 1 hour 30 minutes
  • Preparation Time: 20 minutes
  • Cooking Time: 1 hour 10 minutes
  • Servings: 6-8
  • Calories per serving: Approximately 250-300 calories
  • Key Nutrients: Carbs: 30g, Fat: 15g, Protein: 7g

Ingredients

Gather these ingredients to make your Potatoes Au Gratin:

  • 2 pounds russet or Yukon Gold potatoes, thinly sliced
  • 2 cups heavy cream
  • 1 cup whole milk
  • 2 cups shredded sharp cheddar cheese
  • 1 cup grated Parmesan cheese
  • 3 tablespoons unsalted butter
  • 2 cloves garlic, minced
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ½ teaspoon ground nutmeg (optional)
  • 1 teaspoon fresh thyme leaves (optional)

Ingredient Highlights

  • Potatoes: Yukon Golds offer a creamy texture, while russets become soft and absorb the flavors beautifully.
  • Heavy Cream & Milk: The perfect combination for a rich, smooth sauce without being too heavy.
  • Cheeses: Sharp cheddar provides bold flavor, while Parmesan adds depth and a crispy, golden top.
  • Garlic & Thyme: These aromatics enhance the flavor, making the dish even more delicious.

Step-by-Step Instructions

Here’s how to make Potatoes Au Gratin:

Prepare the Dish

  1. Preheat the Oven: Set your oven to 375°F (190°C). Grease a 9×13-inch baking dish with butter or non-stick spray.
  2. Slice the Potatoes: Use a sharp knife or mandoline to slice the potatoes into thin (⅛-inch) rounds for even cooking.
  3. Prepare the Cream Mixture: In a saucepan over medium heat, melt the butter. Add the minced garlic and cook for 1 minute until fragrant. Stir in the heavy cream, milk, salt, pepper, and nutmeg (if using). Heat until warm but not boiling, then remove from heat.

Assemble the Layers

  1. Layer the Potatoes: Arrange a single layer of potatoes in the prepared baking dish. Pour a small amount of the cream mixture over the top, then sprinkle with cheddar and Parmesan cheese.
  2. Repeat: Continue layering potatoes, cream, and cheese until all ingredients are used, finishing with a generous cheese layer on top.

Bake the Potatoes

  1. Cover and Bake: Cover the dish with foil and bake for 50 minutes. This allows the potatoes to absorb the flavors and become tender.
  2. Uncover and Brown: Remove the foil and bake for another 20-25 minutes, or until the top is golden brown and bubbly. If needed, broil for the last 2-3 minutes for extra crispiness.
  3. Cool and Serve: Let the dish rest for 10 minutes before serving to allow the sauce to thicken.

How to Serve Potatoes Au Gratin

Potatoes Au Gratin pairs well with many dishes and occasions:

  • Classic Style – Serve hot straight from the oven in the baking dish, garnished with fresh herbs like parsley or thyme.
  • Individual Portions – Bake in ramekins or mini casserole dishes for elegant, single-serve portions.
  • Plated with Protein – Serve as a side dish to steak, roasted chicken, pork chops, or grilled fish.
  • Stacked Presentation – Use a round cutter to create stacked portions for a refined, restaurant-style look.
  • Topped with Crispy Bacon – Add crumbled crispy bacon on top before serving for extra flavor and texture.
  • With a Drizzle of Sauce – Serve with a drizzle of truffle oil, garlic butter, or a creamy béchamel sauce.
  • Accompanied by Greens – Pair with a fresh green salad or roasted vegetables to balance the richness.
  • Brunch Style – Top with a poached egg and hollandaise sauce for a luxurious brunch option.
  • With Extra Cheese – Broil for a few extra minutes with an additional layer of cheese for a crispy, golden top.
  • Garnished with Caramelized Onions – Add a topping of sweet, caramelized onions to enhance the flavor.

Additional Tips for Potatoes Au Gratin

Here are some tips to ensure your Potatoes Au Gratin turn out perfect every time:

  • Use a Mandoline: A mandoline slicer ensures uniform potato slices, which helps them cook evenly.
  • Mix Up the Cheese: Try Gruyère, Swiss, or Gouda for a different flavor profile.
  • Add Crunch: Sprinkle breadcrumbs or crushed crackers over the top before baking for a crispy topping.
  • Make Ahead: Assemble the dish up to a day in advance, refrigerate, and bake when ready.
  • Avoid Watery Potatoes: Pat the sliced potatoes dry with a paper towel to remove excess moisture before layering.
  • Even Cooking: Overlap the potatoes slightly but don’t stack them too high to ensure even cooking.
  • Check for Doneness: Insert a knife into the center—if it slides through easily, the potatoes are fully cooked.
  • Let It Rest: Allow the dish to rest for at least 10 minutes after baking so the sauce thickens properly.

Recipe Variations for Potatoes Au Gratin

Here are 10 variations you can try for Potatoes Au Gratin:

  • Garlic Parmesan Au Gratin: Increase the garlic and use only Parmesan for a sharper, nutty flavor.
  • Gruyère and Thyme Au Gratin: Swap cheddar for Gruyère and add fresh thyme for an elegant touch.
  • Bacon Cheddar Au Gratin: Stir in crispy, crumbled bacon for a smoky, savory boost.
  • French Onion Au Gratin: Layer caramelized onions between the potatoes for a sweet, savory twist.
  • Blue Cheese Au Gratin: Add crumbled blue cheese for a bold, tangy flavor.
  • Mushroom & Spinach Au Gratin: Layer sautéed mushrooms and spinach for a veggie-packed version.
  • Smoked Gouda Au Gratin: Use smoked Gouda for a deeper, smoky taste.
  • Dairy-Free Au Gratin: Use plant-based milk and dairy-free cheese for a lactose-free alternative.
  • Sweet Potato Au Gratin: Swap some or all of the potatoes for sweet potatoes for a naturally sweeter dish.
  • Pesto Au Gratin: Add a layer of pesto between the potatoes for an herby, garlicky kick.

Freezing and Storage for Potatoes Au Gratin

  • Refrigeration: Store leftovers in an airtight container in the fridge for up to 4 days. Reheat in the oven at 350°F (175°C) until warmed through.
  • Freezing: Cool completely, then wrap tightly and freeze for up to 3 months. Thaw overnight in the fridge before reheating.

Special Equipment for Potatoes Au Gratin

Here are some special equipment items to make preparing your Potatoes Au Gratin easier:

  • Mandoline Slicer: Ensures uniform, thin potato slices.
  • Saucepan: For making the creamy sauce.
  • 9×13 Baking Dish: The perfect size for even cooking.
  • Cheese Grater: Freshly grated cheese melts better than pre-shredded.
  • Aluminum Foil: Helps cover the dish for even cooking.
  • Oven Thermometer: Ensures accurate baking temperature.

Frequently Asked Questions for Potatoes Au Gratin

  1. Can I use different cheeses?
    Yes! Gruyère, Swiss, or smoked Gouda work well.
  2. Can I make it ahead of time?
    Yes, assemble it a day ahead, refrigerate, and bake when needed.
  3. Why are my potatoes not cooking through?
    Ensure they are sliced thinly and evenly for proper cooking.
  4. Can I use half-and-half instead of heavy cream?
    Yes, but the dish will be slightly less rich.
  5. How do I get a crispy top?
    Broil for 2-3 minutes at the end of baking.
Print
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Potatoes Au Gratin


  • Author: Maisy
  • Total Time: 1 hour 30 minutes
  • Yield: 68 servings 1x

Description

Potatoes Au Gratin is a classic, indulgent dish featuring thinly sliced potatoes layered with a creamy, cheesy sauce and baked until golden brown and bubbly. This rich and comforting side dish is perfect for holidays, family dinners, or any occasion where you want to impress with minimal effort. The combination of tender potatoes, rich cream, and melted cheese creates a luscious, flavorful bite every time.


Ingredients

Scale
  • 2 pounds russet or Yukon Gold potatoes, thinly sliced
  • 2 cups heavy cream
  • 1 cup whole milk
  • 2 cups shredded sharp cheddar cheese
  • 1 cup grated Parmesan cheese
  • 3 tablespoons unsalted butter
  • 2 cloves garlic, minced
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ½ teaspoon ground nutmeg (optional)
  • 1 teaspoon fresh thyme leaves (optional)

Ingredient Highlights

  • Potatoes: Yukon Golds offer a creamy texture, while russets become soft and absorb the flavors beautifully.
  • Heavy Cream & Milk: The perfect combination for a rich, smooth sauce without being too heavy.
  • Cheeses: Sharp cheddar provides bold flavor, while Parmesan adds depth and a crispy, golden top.
  • Garlic & Thyme: These aromatics enhance the flavor, making the dish even more delicious.

Instructions

Prepare the Dish

  1. Preheat the Oven: Set your oven to 375°F (190°C). Grease a 9×13-inch baking dish with butter or non-stick spray.
  2. Slice the Potatoes: Use a sharp knife or mandoline to slice the potatoes into thin (⅛-inch) rounds for even cooking.
  3. Prepare the Cream Mixture: In a saucepan over medium heat, melt the butter. Add the minced garlic and cook for 1 minute until fragrant. Stir in the heavy cream, milk, salt, pepper, and nutmeg (if using). Heat until warm but not boiling, then remove from heat.

Assemble the Layers

  1. Layer the Potatoes: Arrange a single layer of potatoes in the prepared baking dish. Pour a small amount of the cream mixture over the top, then sprinkle with cheddar and Parmesan cheese.
  2. Repeat: Continue layering potatoes, cream, and cheese until all ingredients are used, finishing with a generous cheese layer on top.

Bake the Potatoes

  1. Cover and Bake: Cover the dish with foil and bake for 50 minutes. This allows the potatoes to absorb the flavors and become tender.
  2. Uncover and Brown: Remove the foil and bake for another 20-25 minutes, or until the top is golden brown and bubbly. If needed, broil for the last 2-3 minutes for extra crispiness.
  3. Cool and Serve: Let the dish rest for 10 minutes before serving to allow the sauce to thicken.
  • Prep Time: 20 minutes
  • Cook Time: 1 hour 10 minutes

Nutrition

  • Calories: 250-300 kcal
  • Fat: 15g
  • Carbohydrates: 30g
  • Protein: 7g

Conclusion

Cheesy Potatoes Au Gratin is the ultimate comfort food—rich, creamy, and perfectly golden brown. With layers of tender potatoes smothered in a luscious cheese sauce, this dish is a guaranteed crowd-pleaser.

Whether you’re serving it at a holiday feast or a cozy weeknight dinner, Potatoes Au Gratin is a timeless classic that never disappoints. Experiment with different cheeses, add-ins, and seasonings to make it your own, and enjoy every deliciously melty bite with family and friends.

I’d love to see how your Cheesy Potatoes Au Gratin turns out! Snap a photo, share it on social media, and don’t forget to tag me—I can’t wait to see your delicious creations. Happy cooking!

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