Cheesy Scalloped Potatoes (Easy No Roux Recipe)

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Nothing goes better with a holiday ham than a big serving of homemade, cheesy scalloped potatoes. Unlike traditional scalloped potatoes that require a roux (and can easily curdle), this version uses a simple shortcut that guarantees a smooth, creamy sauce every time.

I LOVE scalloped potatoes. They were a staple growing up in my house, and for good reason. This classic comfort food is budget-friendly, feeds a crowd, and always shows up at holidays and family gatherings.

But I’ll be honest, I struggled with them for years.

Every time I made cheesy scalloped potatoes, I’d end up with a curdled, gloopy sauce and unevenly cooked potatoes. It tasted fine, but the texture just wasn’t right. So I went back to the drawing board and tested this recipe again and again, adjusting ingredients, layering, and bake times until I found a method that actually works.

And this is it.

This recipe uses a simple shortcut (cheddar cheese soup) to create a smooth, creamy scalloped potato sauce that doesn’t curdle and doesn’t require a roux. I’ve tested this method countless times, and it comes out perfectly every time.

And before you worry, this does not taste like canned soup. The potatoes and the sauce are both well seasoned with garlic, onion, and freshly shredded sharp cheddar cheese.

The result? Easy cheesy scalloped potatoes that are creamy, foolproof, and perfect for beginners, holiday dinners, or even a cozy weeknight side.

The best part is you can make them ahead, which makes them a total lifesaver when you’re hosting.

Why This Recipe Works

• Using canned soup instead of making a roux ensures the sauce stays stable during baking and gives you a smooth and creamy sauce.
• The potatoes and sauce are both seasoned in layers, so the dish tastes rich and cheesy, not like canned soup.
• The potatoes are cut very thin and evenly, so they bake quickly, without the need to parboil first, and they’re cooked all the way through by the time the cheese browns!
• These cheesy scalloped potatoes have a rich, creamy sauce but are made without a roux or any dairy that could easily curdle. They’re a lot less complicated than traditional scalloped potatoes or au gratin potatoes.

Ingredients You’ll Need

For the best flavor and texture, use fresh ingredients and freshly shredded cheese in this delicious side dish.

• Yukon gold potatoes – washed, unpeeled, and cut into slices ⅛” thick. You can use a sharp knife, the slicer attachment on a food processor, or a mandolin slicer.
• Condensed cheddar cheese soup – I use a 10.5 oz can of soup. This is my secret tool for keeping the creamy sauce on the scalloped potatoes from curdling. Canned soup is often used in casseroles and does a great job of binding a sauce during long bake times.
• Milk – I used 2% for this recipe, but whole will work too!
• Fresh garlic – minced fine. This adds a little freshness to the cheese sauce.
• Garlic powder and Onion powder– these add a lot of flavor to the potatoes, and I like a little bit of onion powder in the soup as well.
• Ground black pepper 
• Coarse Kosher salt – this is not the same as table salt. Kosher salt is bigger and less salty than table salt. If you only have the fine stuff, only add half of the salt called for in the recipe.
• Sharp cheddar cheese – shred fresh cheese for the best melt. I like Cabot’s “Vermont Sharp” cheddar cheese (I use it all the time for my grilled cheese sandwiches and mac and cheese) for a flavorful New England touch.

What Are the Best Potatoes for Scalloped Potatoes?

I prefer lower starch potatoes like Yukon Gold, Maine red potatoes, or white potatoes. They keep their shape and don’t get mushy during baking like russets. They also release enough liquid to keep the sauce from drying up while cooking.

Russet potatoes can be used in a pinch, but because they are higher in starch, they will break down during cooking and you won’t have the nice, neat slices.

How to Make Cheesy Scalloped Potatoes

This is a condensed version of the full recipe. Since some ingredients are divided, be sure to read the complete instructions on the recipe card for exact measurements and best results.

Step 1

Preheat the oven and grease a 13×9-inch casserole dish.

Step 2

In a small saucepan, heat the cheddar cheese soup and milk until steaming (or microwave in a microwave safe dish for 3 minutes).

Remove the soup from heat. Stir in the minced garlic, ½ teaspoon onion powder, ¼ teaspoon black pepper, and ½ cup shredded cheddar cheese. Set aside.

Step 3

In a small bowl, mix the Kosher salt, remaining ground pepper, garlic powder, and onion powder.  Set aside.

Step 4

Repeat layers with the remaining potatoes, seasoning, and cheese sauce until you’ve used it all.

Step 5

Cover with foil and bake for 30–35 minutes, until bubbling around the edges (potatoes won’t be fully cooked yet).

Step 6

Important! –  Let the dish cool for 10 minutes before serving to allow the sauce to thicken.

Make Scalloped Potatoes With Cheese Ahead Of Time

Mix the cheddar soup and milk, and skip the step about heating the soup. That won’t be necessary. 

Assemble the potato casserole as instructed, but do not top with cheddar cheese. 

When you’re ready to bake, cover with foil and bake as the recipe instructs, including adding the cheddar cheese topping during the last 20 minutes of baking.

Hint: If baking straight from the fridge, add 10-15 minutes to the cook time or let the potatoes sit at room temperature for an hour before baking.

Variations

• Swap the cheddar for Swiss, gruyere, or Muenster.
• Add a little Parmesan cheese to the top just before it finishes baking.
• Sauté slices of white onion until soft and add to the cheddar sauce for extra flavor.
• Make scalloped red potatoes instead of using gold potatoes in this recipe.
• If you can’t find condensed cheddar cheese soup, use cream of celery or cream of mushroom in its place.
• Use a reduced sodium version of cheddar cheese soup for more control of the level of salt in the dish.
• You can add some fresh herbs like fresh thyme or a little minced rosemary
• Add in proteins like sausage, bacon, ham, or leftover boneless turkey breast. If you’re adding already seasoned meat, reduce the salt on the potatoes to ½ a teaspoon of Kosher salt.

Tips For Making Cheesy Scalloped Potatoes

• Add the cheese to the soup mixture. The soup will protect the cheddar and keep the sauce from getting grainy.
• Use freshly shredded cheese for a really creamy cheese sauce. Prepackaged shredded cheese contains anti-caking ingredients, which also hinder its meltability a little.
• Let the dish sit for 10 minutes before serving. 
• Make ahead tip: If the potatoes have been assembled ahead and refrigerated, take the potatoes out 1-2 hours before baking to bring them up to room temperature. Then bake as instructed.

If something still isn’t turning out quite right, check the troubleshooting section below. I’ve covered the most common issues and how to fix them.

Troubleshooting Cheesy Scalloped Potatoes

1. Why are my potatoes still hard?
   They were likely sliced too thick. For the best texture, slice them about 1/8 inch thick so they cook evenly. You can use a mandolin slicer or a very sharp knife.
2. Why is my sauce watery?
   Let the potatoes rest for 10 minutes before serving. This gives the sauce time to thicken as it cools slightly.
3. Why did my cheese sauce turn grainy?
   Pre-shredded cheese and high heat can both affect texture. Freshly shredded cheddar melts more smoothly, and the cheddar soup helps protect the sauce from curdling during baking. I also recommend using a sharp cheddar instead of a hard, dry aged cheddar. It has a little more moisture and melts better in the sauce. If you want to use an extra sharp cheddar, save it for the top and that will be delicious.

Serving Scalloped Potatoes

These cheesy scalloped potatoes are a classic side dish for Easter, Thanksgiving, or Christmas! They sit nicely beside a glossy spiral-glazed ham or next to the carved turkey in the main dining room.

More Side Dishes You’ll Love

• Apple Walnut Salad
• Broccoli Cheddar Bake
• Maple Roasted Brussels Sprouts
• Pan Fried Asparagus
• Oven-Roasted Cauliflower

How to Store Scalloped Potatoes With Cheese

Store any leftover potatoes in the fridge in an airtight container for up to 3 days. 

Reheating Cheesy Scalloped Potatoes

Reheat leftovers in the oven, uncovered in a baking dish at 350ºF for 15-25 minutes or until heated through. If the potatoes are looking dry, I like to add a splash of milk or water before reheating to keep them creamy.

You can also reheat the scalloped potatoes in the microwave for 1-2 minutes until heated through.

FAQs

More Potato Recipes

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