Cheesy Scalloped Potatoes Without Roux — Creamy Oven-Baked Recipe

Nothing pairs better with a holiday ham than a generous serving of homemade, cheesy scalloped potatoes. This version skips the traditional roux—so you won’t risk a curdled sauce—and relies on a simple shortcut that produces a reliably smooth, creamy result every time.

I love scalloped potatoes — they were a comfort-food staple in my family. They’re economical, feed a crowd, and show up often at holidays and gatherings. For years I struggled to get the texture right: sauces that separated or potatoes that cooked unevenly. After testing and tweaking, I developed a method that’s simple, forgiving, and consistently delicious.

This recipe uses condensed cheddar cheese soup mixed with milk and a little fresh cheese to create a creamy sauce that holds up during baking. Proper seasoning in layers and very thin, even potato slices mean you don’t need to parboil, and the potatoes finish cooking as the cheese browns on top. The end result is creamy, cheesy scalloped potatoes that feel homemade — not like canned soup — and are perfect for holidays or a cozy weeknight meal. You can also assemble them ahead, which makes hosting much easier.

Why This Recipe Works

• Condensed cheddar soup replaces a roux, stabilizing the sauce during the long bake and preventing curdling.
• Seasoning the potatoes and the sauce in layers keeps the flavor bright and avoids a canned taste.
• Thin, even slices (about 1/8″) cook through in the oven without parboiling.
• The method yields a rich, creamy dish without complicated steps or delicate dairy techniques.

Ingredients You’ll Need

Use fresh ingredients and freshly shredded cheese for the best texture and flavor.

• Yukon Gold potatoes — washed, unpeeled, and sliced 1/8″ thick (use a mandolin, slicer attachment, or sharp knife).
• Condensed cheddar cheese soup — one 10.5-ounce can. It helps keep the sauce stable during baking.
• Milk — 2% works well; whole milk is fine too.
• Fresh garlic — minced for a bright flavor.
• Onion powder and garlic powder — divided as noted in the instructions.
• Ground black pepper
• Kosher salt — coarser and milder than table salt; if using table salt, reduce the amount by half.
• Sharp cheddar cheese — freshly shredded for better melt and creaminess.

Best Potatoes for Scalloped Potatoes

Lower-starch potatoes like Yukon Gold, red potatoes, or white potatoes hold their shape and won’t become mushy in the oven. Russets can be used but tend to break down because they’re higher in starch.

How to Make Cheesy Scalloped Potatoes

Below is a concise version of the method. For exact measurements, follow the ingredient list and step-by-step instructions in the recipe section.

Step 1

Preheat the oven to 375°F and grease a 13×9-inch casserole dish.

Step 2

In a small saucepan, heat the condensed cheddar soup and milk until steaming, or microwave the mixture in a microwave-safe dish for about 3 minutes. Remove from heat and stir in minced garlic, 1/2 teaspoon onion powder, 1/4 teaspoon black pepper, and 1/2 cup shredded cheddar. Set aside.

Step 3

Mix the remaining onion powder, garlic powder, kosher salt, and remaining ground pepper in a small bowl and set aside.

Step 4

Repeat with the remaining potato slices, seasoning, and sauce.

Step 5

Cover with foil and bake at 375°F for 30–35 minutes, until the casserole is bubbling around the edges (the potatoes may not be fully tender yet).

Remove the foil and increase the oven temperature to 425°F.

Step 6

Make Ahead Instructions

Combine the condensed soup and milk without heating. Assemble the casserole as directed but do not add the final cheddar topping. Cover and refrigerate. When ready to bake, add the foil and bake according to the recipe, adding the shredded cheddar for the last 20 minutes of baking. If baking from cold, add 10–15 minutes to the cook time or let the dish sit at room temperature for about an hour before baking.

Variations

• Swap cheddar for Swiss, Gruyère, or Muenster.
• Sprinkle grated Parmesan over the top before the final bake for extra flavor.
• Sauté thinly sliced white onion and add to the cheese sauce.
• Use red potatoes instead of Yukon Gold for a different texture and color.
• If you don’t have condensed cheddar, try cream of celery or cream of mushroom soup.
• Choose reduced-sodium soup if you want better control over salt levels.
• Add fresh herbs like thyme or a small amount of minced rosemary.
• Stir in proteins such as cooked sausage, bacon, ham, or leftover turkey—reduce added salt if the meat is seasoned.

Tips for Success

• Mix some shredded cheese into the warm soup mixture — the soup helps protect the cheddar from becoming grainy.
• Use freshly shredded cheese for the creamiest melt; pre-shredded cheese often contains anti-caking agents that affect texture.
• Let the casserole rest for 10 minutes before slicing so the sauce sets.
• Make-ahead tip: If refrigerated after assembling, bring the dish to room temperature 1–2 hours before baking for more even cooking.

Troubleshooting

1. Potatoes still firm? They were likely sliced too thick. Aim for 1/8″ slices for even cooking.
2. Watery sauce? Allow the dish to rest 10 minutes after baking to let the sauce thicken as it cools.
3. Grainy cheese sauce? Use freshly shredded cheddar and avoid excessive direct high heat. The condensed soup helps stabilize the sauce.

Serving Suggestions

These cheesy scalloped potatoes are ideal for Easter, Thanksgiving, Christmas, or any family dinner. They pair beautifully with glazed ham, roast turkey, or any roasted or glazed main course.

Storage and Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days.

Reheating

Reheat in the oven at 350°F, uncovered, for 15–25 minutes until heated through. Add a splash of milk or water if the casserole seems dry. You can also reheat individual portions in the microwave for 1–2 minutes.

FAQs