Simple Scalloped Potato Recipe | Creamy Layers, No Fuss

Thin potato slices baked in a garlicky cream sauce turn tender, silky, and browned on top with edges that taste like potato chips.

Scalloped potatoes hit that sweet spot: cozy, simple, and dinner-table friendly. You don’t need fancy gear, and you don’t need a long ingredient list. What you do need is the right slice thickness, a sauce that won’t split, and enough bake time for the center to go soft.

This recipe leans classic: russet or Yukon Gold potatoes, cream and milk, butter, garlic, and a light hand with seasoning. You can tuck in onions, herbs, or a little cheese if you want, but the base version already brings plenty of flavor and that glossy, spoon-coating texture.

What Makes Scalloped Potatoes Work Every Time

Scalloped potatoes are all about steady heat and even slicing. When slices match, they cook at the same pace, so you don’t end up with a browned top and a crunchy middle.

Starch matters too. Russets break down a bit and thicken the sauce as they bake. Yukon Golds hold their shape and turn buttery-soft. Either one works. Mixed potatoes work too, as long as you slice them evenly.

Last thing: don’t rush the rest time. After baking, the dish needs a short pause so the sauce settles and the layers stop sliding around when you cut.

Ingredients And Smart Picks

These amounts fit a standard 9×13-inch baking dish and feed about 8 as a side. If scalloped potatoes are the main dish, plan closer to 5 or 6 servings.

• Potatoes: 3½ to 4 pounds russet or Yukon Gold
• Butter: 3 tablespoons
• Onion: 1 small yellow onion, thinly sliced (optional)
• Garlic: 3 cloves, minced
• Flour: 3 tablespoons (for a sauce that stays smooth)
• Milk: 2 cups (whole milk gives a richer bite)
• Cream: 1 cup heavy cream
• Salt: 1½ teaspoons, plus more to taste
• Black Pepper: ½ teaspoon
• Nutmeg: a pinch (optional, for a bakery-style warmth)
• Fresh Thyme Or Parsley: 1 tablespoon chopped (optional)

If you want a lighter pan, use all milk and skip the cream. The texture turns less silky, but it still bakes up tender. If you want a richer pan, swap ½ cup of milk for more cream.

Best Potato Thickness

Aim for slices about 1/8 inch thick. A mandoline makes this easy, but a sharp knife works if you take your time. Thicker slices can bake unevenly unless you extend the bake time.

Do You Need To Rinse The Potatoes?

Skip rinsing for this style. Surface starch helps the sauce cling and thicken as it bakes. Just peel (or scrub well), slice, and keep the slices protected so they don’t dry out.

Step-By-Step Simple Scalloped Potato Recipe With Creamy Garlic Sauce

Set your oven to 375°F (190°C). Grease a 9×13-inch baking dish with butter. If you’re using onions, slice them thin so they soften fully in the oven.

1) Slice And Layer

Peel the potatoes if you like a smoother texture, then slice them to an even thickness. Lay a third of the potatoes in the dish, slightly overlapping. Sprinkle with a small pinch of salt and pepper. Scatter a third of the onion slices over the potatoes if using.

2) Make The Sauce

Melt the butter in a saucepan over medium heat. Add the garlic (and onion if you want the onion flavor in the sauce too) and cook for about 30 seconds, just until fragrant.

Whisk in the flour and cook for 1 minute. You’re making a quick roux that keeps the dairy stable and helps the sauce cling to the potatoes.

Slowly whisk in the milk. Keep whisking as it warms, then pour in the cream. Cook, whisking often, until the sauce thickens enough to coat the back of a spoon. Stir in salt, pepper, and nutmeg if using.

3) Assemble And Bake

Pour about a third of the sauce over the first potato layer. Repeat the layers two more times: potatoes, seasoning, onions, sauce. Finish with sauce on top, then sprinkle with herbs if using.

Seal tightly with foil and bake for 45 minutes. Remove the foil and bake 25 to 35 minutes more, until the top is golden and the center is tender when pierced with a thin knife.

Let the dish rest for 15 minutes before cutting. That short rest makes cleaner slices and a thicker spoonful of sauce.

Food safety note: don’t leave dairy-based dishes sitting out for long stretches. The USDA calls 40°F to 140°F the “Danger Zone,” where bacteria can grow fast; see the USDA FSIS page on Danger Zone (40°F – 140°F).

Troubleshooting And Ingredient Swaps That Don’t Ruin The Pan

Scalloped potatoes are forgiving, but a few small choices change the texture a lot. Use this table to steer the result where you want it.

What You Change	What Happens	What To Do
Potatoes sliced thicker than 1/8 inch	Top browns before the center turns soft	Keep foil on longer, add 10–20 minutes, test the center
All milk, no cream	Lighter sauce, less silky texture	Use whole milk, cook sauce until it coats a spoon
Low-fat milk	Thinner sauce, more watery edges	Keep cream, or add 1 more tablespoon flour
Skip the flour	Sauce can split and run	Use flour, or add 2 ounces cream cheese to stabilize
Add cheese to the sauce	Richer, more browned top	Use 1 cup shredded Gruyère or cheddar, stir off heat
Use Yukon Golds	Neat slices, buttery bite	Great choice for clean layers
Use russets	Soft layers, thicker sauce from starch	Handle gently when serving
Add sliced ham or bacon	Main-dish feel, salt level rises	Reduce added salt, bake until potatoes are fully tender

Recipe Card

Scalloped Potatoes Recipe Card

Servings: 8 (side)  |  Prep Time: 20 minutes  |  Bake Time: 70–80 minutes  |  Rest Time: 15 minutes

Ingredients

• 3½ to 4 pounds russet or Yukon Gold potatoes, peeled or scrubbed
• 3 tablespoons butter, plus more for the baking dish
• 1 small yellow onion, thinly sliced (optional)
• 3 cloves garlic, minced
• 3 tablespoons all-purpose flour
• 2 cups whole milk
• 1 cup heavy cream
• 1½ teaspoons salt
• ½ teaspoon black pepper
• Pinch of nutmeg (optional)
• 1 tablespoon chopped parsley or thyme (optional)

Instructions

1. Heat oven to 375°F (190°C). Butter a 9×13-inch baking dish.
2. Slice potatoes to about 1/8 inch thick. Layer one-third of the potatoes in the dish. Season lightly with a pinch of salt and pepper. Add onion slices if using.
3. Melt butter in a saucepan over medium heat. Stir in garlic and cook for about 30 seconds.
4. Whisk in flour and cook for 1 minute. Slowly whisk in milk, then add cream. Cook until the sauce coats the back of a spoon. Stir in salt, pepper, and nutmeg.
5. Pour one-third of the sauce over the first layer. Repeat two more times: potatoes, seasoning, onions, sauce.
6. Seal tightly with foil. Bake 45 minutes. Remove the foil and bake 25 to 35 minutes more, until golden and tender in the center.
7. Rest 15 minutes, then slice and serve.

Notes

• Mandoline Tip: Use a cut-resistant glove if you have one.
• Cheese Option: Stir 1 cup shredded Gruyère or sharp cheddar into the sauce off heat.
• Make-Ahead: Assemble up to 24 hours ahead, seal, chill, then bake. Add 10–15 minutes to the foil-on bake time.

Estimated Nutrition (Per 1/8 Of Pan)

Calories: about 320  |  Protein: about 7 g  |  Carbs: about 35 g  |  Fat: about 18 g

How To Know It’s Done Without Guesswork

Don’t judge doneness by the color on top. The center is the real test. Slide a thin knife into the middle of the pan. It should glide through with only slight resistance.

If the top browns early, lay foil back on loosely for the last stretch. If the sauce looks thin right out of the oven, give it that full rest. It tightens as it cools a bit.

Timing And Pan Size Cheatsheet For Even Baking

Different pans bake at different speeds. A deeper dish takes longer to heat through. This table gives you a solid starting point, then you can use the knife test to finish.

Pan And Layer Style	Foil-On Bake	Foil-Off Bake
9×13-inch dish, 1/8-inch slices	45 minutes	25–35 minutes
9×13-inch dish, 3/16-inch slices	55 minutes	25–35 minutes
8×8-inch dish, thicker layers	60 minutes	20–30 minutes
Two 8×8-inch dishes (split batch)	40 minutes	20–25 minutes
10-inch cast iron skillet, shallow layers	35 minutes	20–25 minutes
Chilled make-ahead pan (straight from fridge)	55–65 minutes	25–35 minutes

Make-Ahead, Storage, And Reheating That Keeps The Texture Right

Scalloped potatoes can be made ahead, and they reheat well when you treat them gently. If you’re planning a big meal, assemble the pan the night before, seal, and refrigerate. Bake the next day.

For leftovers, cool the pan promptly, portion it, and refrigerate. The USDA FSIS guidance on Leftovers and Food Safety covers cooling and storage timing for cooked foods.

Best Reheat Methods

• Oven (best texture): Lay foil on top and warm at 350°F until hot in the middle. Lift the foil for the last few minutes to re-crisp the top.
• Microwave (fastest): Heat in short bursts, with a loose lid, so the sauce doesn’t spit. Let it sit 2 minutes before eating.
• Skillet Slice: Warm a slice in a nonstick skillet over medium-low with a splash of milk. Use a lid, then remove it at the end to brown the bottom.

Flavor Twists That Still Taste Like Scalloped Potatoes

If you want to change the mood without turning it into a different dish, keep the potato-to-sauce balance the same and swap just one thing at a time.

Herb And Allium Options

• Chives: Stir into the sauce off heat for a mild onion note.
• Rosemary: Use a small pinch, minced fine, so it doesn’t feel woody.
• Leeks: Swap for onion, slice thin, rinse well, then layer.

Cheese Options

Cheese isn’t required for scalloped potatoes, but it can be delicious. Gruyère melts smooth and adds a nutty edge. Sharp cheddar brings a familiar bite. Add cheese off heat so it melts without turning grainy.

Protein Add-Ins

For a one-pan dinner, add cooked ham or crisp bacon between layers. Keep the pieces thin. Big chunks can block heat and slow the center from cooking.

Serving Ideas That Fit Almost Any Meal

Scalloped potatoes pair well with roasted chicken, baked fish, seared pork chops, or a simple green salad. If your main dish is salty, keep the potatoes on the lighter side with seasoning and skip cured add-ins.

If you want a crisp contrast on the plate, add something bright and crunchy: steamed green beans with lemon, a shaved cabbage salad, or quick-pickled cucumbers. The creamy pan likes a fresh bite next to it.