Cheesy Scalloped Potatoes

Perfect as a side for holiday dinners like Thanksgiving, Easter, or Christmas — but just as welcome at a casual Sunday meal — cheesy scalloped potatoes are the kind of recipe you return to again and again. They’re versatile, crowd-pleasing, and pair beautifully with roasted meats, grilled veggies, or a simple salad.

In this post, we’ll explore everything you need to know to master this comfort food favorite. From choosing the best potatoes and cheeses to baking tips and delicious variations, you’ll walk away with the confidence to make cheesy scalloped potatoes from scratch — and maybe even put your own twist on them.

Understanding Scalloped Potatoes

So, what exactly are scalloped potatoes? Traditionally, they’re made by layering thin slices of potatoes in a casserole dish, often with onions, then baking them in a creamy milk-based sauce. The result is a soft, velvety texture — hearty but elegant.

You might be wondering: What’s the difference between scalloped potatoes and au gratin potatoes? While both dishes are similar, au gratin typically includes cheese in every layer and often has breadcrumbs on top, creating a crisp, golden crust. Scalloped potatoes, on the other hand, may or may not include cheese — but when they do, the result is what we lovingly call cheesy scalloped potatoes.

Across regions, the naming can vary. In the South, they’re simply “scalloped potatoes,” while in some European traditions, they might be referred to as a gratin. No matter what you call them, when done right, this dish delivers unbeatable flavor and creamy texture in every forkful.

Choosing the Right Ingredients

When it comes to making cheesy scalloped potatoes, ingredient choice matters — a lot. Here’s how to pick the best components for maximum flavor and texture.

Potatoes: Go for starchy varieties like Russet or Yukon Gold. Russets are fluffier and absorb the creamy sauce well, while Yukon Golds hold their shape better and offer a buttery flavor. Avoid waxy potatoes like red potatoes — they won’t soften as nicely.

Cheese: This is where the magic happens! Sharp cheddar gives a bold, tangy flavor, while Gruyère adds nuttiness and melts beautifully. For extra depth, toss in a bit of Parmesan. A blend works best — experiment to find your favorite combo.

Cream & Milk: Whole milk, heavy cream, or even half-and-half all work. For a lighter option, you can use a mix of milk and chicken broth, but nothing beats the richness of cream if you’re going all in.

Aromatics: Sautéed onions, a touch of minced garlic, and herbs like thyme or rosemary add beautiful depth.

Seasonings: Don’t forget salt, black pepper, and a pinch of nutmeg if you’re feeling fancy. Simple seasoning makes the cheese and potatoes shine.

Essential Tools and Equipment

Making scalloped potatoes isn’t hard, but having the right tools makes a big difference.

• A mandoline slicer helps you get perfectly thin, even slices. This is key for uniform cooking.
• Use a ceramic or glass baking dish (9×13 inches is standard) for even heat distribution.
• A medium saucepan is ideal for creating your cheese sauce.
• If you don’t have a mandoline, a sharp knife or even a food processor with a slicing blade works in a pinch.

A little prep goes a long way, and the right tools make this dish quicker and more enjoyable to assemble.

Step-by-Step Preparation Guide

Let’s break down the process so you can make cheesy scalloped potatoes with confidence:

1. Preparation

Start by preheating your oven to 375°F (190°C). Grease your baking dish with butter or non-stick spray.

Wash, peel, and thinly slice your potatoes (about ⅛ inch thick). Uniform slices ensure even cooking.

Optional: Sauté thinly sliced onions in a bit of butter until soft — about 5 minutes.

2. Making the Cheese Sauce

In a saucepan over medium heat, melt 2 tablespoons of butter. Whisk in 2 tablespoons of flour to make a roux and cook for 1 minute.

Slowly whisk in 2 cups of milk or cream, stirring constantly until the sauce thickens slightly — about 5 minutes. Remove from heat and stir in 1½ to 2 cups of shredded cheese. Season with salt, pepper, and a pinch of nutmeg.

Tip: Don’t boil the sauce after adding the cheese — it can cause it to curdle.

3. Layering

Spread a thin layer of cheese sauce on the bottom of your dish. Add a layer of sliced potatoes, a sprinkle of onions (if using), and spoon some cheese sauce over the top. Repeat until all ingredients are used, ending with sauce and a handful of cheese on top.

4. Baking

Cover with foil and bake for 45 minutes, then remove foil and bake another 20–25 minutes until the top is bubbly and golden brown.

5. Resting

Let the dish rest for 10–15 minutes before serving so the layers can set. This makes slicing and serving easier.

Common Mistakes and How to Avoid Them

Cheesy scalloped potatoes are simple, but a few missteps can lead to disappointment. Here’s how to dodge them:

• Curdled sauce: Don’t add cheese to a boiling sauce — remove it from heat first.
• Undercooked potatoes: Ensure they’re sliced thin enough, and bake long enough. Test with a knife — it should glide through.
• Watery dish: Avoid excess liquid and watery potatoes. Use starchy varieties for better absorption.
• No crispy top: Uncover during the final 20 minutes to allow the top to brown. For extra crisp, add a sprinkle of Parmesan at the end.

Delicious Variations to Try

While the classic version is a fan favorite, you can easily customize scalloped potatoes to suit your flavor cravings. Here are some tried-and-true variations:

• Loaded Scalloped Potatoes: Add chopped crispy bacon, sliced green onions or chives, and a swirl of sour cream in the layers for a fully loaded experience. Top with extra cheese and bake until bubbly.
• Garlic Parmesan: For serious flavor lovers, mix roasted garlic into your cheese sauce and swap in Parmesan for part of the cheese blend. It’s rich, savory, and smells amazing in the oven.
• Herb-Infused: Fresh herbs like thyme, rosemary, or dill can bring aromatic elegance to the dish. Simply tuck a few sprigs between layers or infuse them in the cream before assembling.
• Spicy Kick: Add sliced jalapeños, a pinch of red pepper flakes, or a spoonful of chipotle in adobo to bring heat to the party. Great with BBQ mains!
• Vegetarian or Vegan: Use plant-based milk, vegan butter, and your favorite dairy-free cheese to recreate the creamy texture. Nutritional yeast can also boost the cheesy flavor naturally.

Feel free to experiment — the base is forgiving and flexible!

Make-Ahead and Storage Tips

One of the best things about scalloped potatoes is how well they hold up when made ahead — perfect for stress-free entertaining or weekly meal prep.

• Preparing in Advance: Assemble the entire dish (potatoes, sauce, layering) up to 24 hours in advance. Cover tightly with foil and refrigerate until you’re ready to bake. Just allow 15–20 extra minutes in the oven when baking from cold.
• Storing Leftovers: Cool completely, then store in an airtight container in the fridge for up to 4 days. Reheat in the oven or microwave until heated through. If it seems dry, add a splash of milk or cream before reheating.
• Freezing: Yes, you can freeze scalloped potatoes! After baking and cooling, portion and freeze for up to 3 months. Thaw overnight in the fridge and reheat in the oven for best texture. The cheese may separate slightly, but the flavor stays delicious.

Perfect Pairings: What to Serve With

Cheesy scalloped potatoes are rich and satisfying, making them the perfect companion for a variety of main dishes and sides.

• Proteins: They pair beautifully with classic mains like roast chicken, glazed ham, meatloaf, or grilled steak. Their creaminess complements salty, smoky, or juicy meats.
• Vegetables: Add freshness and balance to your plate with sides like steamed green beans, roasted carrots, or Brussels sprouts. You can also serve them with a medley of sautéed seasonal veggies.
• Salads: A crisp, refreshing green salad with vinaigrette or a simple arugula and lemon salad offers contrast and cuts through the richness.
• Breads: Don’t forget something to mop up the sauce — crusty baguettes, sourdough slices, or garlic breadsticks are all excellent choices.

Whether you’re building a weeknight dinner or a holiday spread, these potatoes elevate any meal with ease.

Frequently Asked Questions

Can I use different types of potatoes?
Yes! Russets are classic for their starchiness and softness, while Yukon Golds hold their shape and taste buttery. Avoid waxy varieties like red potatoes.

How do I prevent the sauce from curdling?
Keep the heat moderate when making the sauce, and don’t boil it after adding cheese. Add cheese off the heat and stir until melted gently.

Is it necessary to peel the potatoes?
Not always! If you’re using Yukon Golds or thin-skinned potatoes, peeling is optional. Just wash well. For Russets, peeling is usually preferred for a smoother texture.

Can I make this dish gluten-free?
Absolutely. Use a gluten-free flour like rice flour or cornstarch to thicken the sauce instead of all-purpose flour.

How do I store and reheat leftovers?
Store in the fridge for up to 4 days. Reheat in the oven at 350°F until warm, or microwave in short bursts with a splash of milk to keep it creamy.

Can I add meat to the recipe?
Definitely! Try adding diced ham, cooked sausage, or even shredded chicken between layers for a hearty twist.

What’s the difference between scalloped and au gratin potatoes?
Scalloped potatoes typically use a cream sauce, while au gratin includes more cheese throughout and often a breadcrumb topping.

How thin should I slice the potatoes?
Aim for ⅛ inch thick. Too thick and they won’t cook evenly; too thin and they can fall apart.

Can I prepare this dish in a slow cooker?
Yes! Layer and cook on low for 6–7 hours or high for 3–4 hours until potatoes are fork-tender.

How do I achieve a crispy top layer?
Remove foil during the last 20 minutes of baking and sprinkle extra cheese or breadcrumbs for a golden, crispy top.

Conclusion: Bringing It All Together

Cheesy scalloped potatoes are the ultimate side dish — creamy, cheesy, comforting, and endlessly customizable. Whether you’re preparing them for a cozy Sunday dinner or a festive holiday feast, this dish always delivers big on flavor and satisfaction.

With just a few basic ingredients and some layering love, you can create a dish that’s both nostalgic and crowd-pleasing. Don’t be afraid to try new twists or adapt the recipe to your taste.

And if you have a favorite version or secret ingredient, share it in the comments — let’s keep the cheesy goodness going!

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