There is nothing quite like a bubbling, golden-brown casserole of creamy potatoes on the holiday table. This recipe for Easter scalloped potatoes is the one I turn to every single year. It delivers perfectly tender potatoes in a luxuriously smooth cream sauce that, thanks to a little kitchen secret, never breaks or turns watery.

This casserole of creamy potatoes is more than just a side dish; it’s a centerpiece of comfort food that will have everyone reaching for seconds. Prepare for this to become your go-to holiday recipe.

Why You’ll Love This Recipe

A Secret Ingredient for the Creamiest Sauce

My secret to a foolproof, velvety cream sauce is a combination of two simple ingredients. A small amount of Dijon mustard acts as a natural emulsifier, which helps stabilize the Béchamel sauce and prevents it from ever becoming grainy or separating. You will not taste the mustard, but you will notice its incredible power. We also add a whisper of freshly grated nutmeg. This classic aromatic adds a warm, fragrant depth that pairs beautifully with dairy and potatoes, making the dish feel extra special for a holiday feast.

Perfectly Tender Every Time

My method ensures the potatoes are cooked all the way through without ever becoming mushy. By baking them covered first, we steam the potato slices to perfect tenderness before browning the top.

Make-Ahead Friendly

This is a true lifesaver for busy holiday meal prep. You can assemble and partially bake this dish up to two days in advance, saving you precious time on Easter Sunday.

Incredibly Flavorful

We build flavor in layers, starting with a rich, savory Béchamel-style sauce made with onions, garlic, and chicken broth. This is far superior to simply pouring cream over potatoes.

No-Fail Technique

I address all the common problems right in the method. From seasoning each layer to letting the dish rest, these small steps guarantee perfect results and prevent watery potatoes.

Ingredients You’ll Need

• ¼ cup salted butter
• 1 large yellow onion (diced)
• 2 cloves garlic (minced)
• ¼ cup all-purpose flour
• 2 cups milk
• 1 cup chicken broth
• 1 ¼ teaspoon salt (divided)
• ½ teaspoon black pepper (divided)
• 3 pounds Yukon gold potatoes (or red potatoes, *see notes, sliced about ⅛-inch thick)

Ingredient Notes and Substitutions

I highly recommend using waxy potatoes like Yukon Gold or red potatoes. Their lower starch content helps them hold their shape beautifully after baking, and their thin skins mean you do not have to peel them. Russet potatoes can be used, but they are starchier and more likely to fall apart, resulting in a softer texture.

Milk. Whole milk provides the ideal richness for the cream sauce. For an even more decadent dish, you can substitute half-and-half or heavy cream for up to half of the milk.

For Au Gratin Style. To turn this into Potatoes Au Gratin, simply add about 1 ½ cups of shredded sharp Cheddar or Gruyère cheese into the sauce after it has thickened. You can also sprinkle extra cheese on top before the final bake.

Gluten-Free Option. To make this recipe gluten-free, substitute the all-purpose flour with an equal amount of a good quality 1-to-1 gluten-free flour blend to create the roux.

How to Make Easter Scalloped Potatoes

Prepare the Oven and Dish

First, preheat your oven to 350°F. Generously grease a 9×13 inch casserole dish with butter and set it aside. This step is important to prevent the potatoes from sticking.

Start the Sauce Base

In a large saucepan or Dutch oven, melt the butter over medium-low heat. Add the diced yellow onion and minced garlic. Cook, stirring occasionally, until the onion softens and becomes fragrant, which usually takes about 3 to 4 minutes. Next, stir in the all-purpose flour. It is crucial to cook this mixture for about two minutes, stirring constantly. This creates a proper roux and cooks out any raw flour taste.

Build the Cream Sauce

Combine the milk and chicken broth in a separate measuring cup. Very gradually, pour a small amount of the liquid into the saucepan while whisking constantly. The mixture will become very thick, like a paste. Continue adding the liquid a little at a time, whisking until smooth after each addition. This careful process is the key to a lump-free Béchamel sauce. Once all the liquid is incorporated, whisk in 1 teaspoon of Dijon mustard and ¼ teaspoon of nutmeg.

Thicken and Season the Sauce

Increase the heat to medium and bring the sauce to a gentle boil, still whisking. Let it boil for one full minute as it thickens to a consistency that can coat the back of a spoon. Stir in ½ teaspoon of the salt and ⅛ teaspoon of the pepper. This seasons the sauce itself before it meets the potatoes.

Layer the Casserole

Now it is time to assemble. Arrange one-third of your sliced potatoes in an even layer in the bottom of your prepared dish. Sprinkle them evenly with ¼ teaspoon of the remaining salt and ⅛ teaspoon of the remaining pepper. Pour one-third of the cream sauce over the potatoes. Seasoning each layer directly ensures every single bite is perfectly flavorful.

Repeat and Bake Covered

Repeat the layering process two more times, seasoning the potatoes with salt and pepper each time and ending with a final layer of cream sauce. Cover the casserole dish tightly with aluminum foil. Bake for 45 minutes. The foil traps steam, which gently and evenly cooks the potatoes until they are tender.

Bake Uncovered for a Golden Top

After 45 minutes, carefully remove the foil. Return the dish to the oven and bake for an additional 35 to 45 minutes. This uncovered baking time allows excess moisture to evaporate and the top to become beautifully golden brown. If you like extra color, you can place it under the broiler for 3 to 4 minutes at the very end, but watch it closely.

The Crucial Rest

This step is non-negotiable for the perfect texture. Allow the scalloped potatoes to rest on a wire rack for at least 20 minutes before serving. This gives the sauce time to set and thicken properly, preventing a runny mess when you scoop into it.

Slicing Potatoes and Choosing Your Baking Dish

How to Slice Potatoes Perfectly (With or Without a Mandoline)

A mandoline slicer is the fastest and most efficient tool for getting perfectly uniform ⅛-inch slices. This consistency is the secret to even cooking. If you do not have one, a sharp chef’s knife works wonderfully too. For stability and safety, first cut the potato in half lengthwise. Place the flat cut-side down on your cutting board. This creates a stable base, allowing you to carefully slice the potato into thin, even half-moons.

Does Your Casserole Dish Matter?

Yes, the material of your casserole dish can affect the outcome. Glass or ceramic dishes, like Pyrex or Staub, are ideal for this recipe. They heat evenly and retain heat well, ensuring the potatoes cook through without hot spots. If you use a metal baking dish, be aware that it can conduct heat more quickly. I recommend checking for doneness about 5 to 10 minutes earlier than the recipe states if you are using a metal pan.

What to Serve with Scalloped Potatoes for Easter

These creamy scalloped potatoes are the ultimate holiday side dish and pair wonderfully with classic Easter mains.

For Glazed Ham. The rich, savory, and creamy potatoes are a perfect counterbalance to the sweet and salty notes of a classic pineapple or brown sugar glazed ham.

For Roast Lamb. When serving a robust main like roast lamb, perhaps with a mint sauce, the richness of this potato dish stands up to and complements the meat beautifully.

Other Easter Mains. This comfort food classic is also a fantastic partner for a simple roasted chicken or a full holiday turkey.

Adding a Green. To complete the plate, I love serving these potatoes with a simple green vegetable. Roasted asparagus with a squeeze of lemon or tender steamed green beans adds a fresh, bright contrast.

Pro Tips and Troubleshooting

Pro Tips for Success

Choose the Right Potato. Stick with waxy potatoes like Yukon Gold or red varieties. They hold their shape and provide the best texture for this dish.

Uniform Slices are Key. Whether you use a mandoline or a knife, make sure your potato slices are a consistent thickness to ensure they all cook at the same rate.

Season Every Layer. Do not just season the sauce. Sprinkling a little salt and pepper directly on each layer of potatoes is the secret to deeply flavorful results.

Let It Rest. I cannot stress this enough. The 20-minute rest after baking allows the starches to settle and the sauce to thicken into a perfect, sliceable consistency.

Sauce Consistency. Before you start layering, your Béchamel sauce should be thick enough to nicely coat the back of a spoon. If it seems too thin, let it simmer for another minute or two.

Troubleshooting Common Problems

Watery Potatoes? This can happen for a few reasons. The most common are not letting the sauce thicken enough on the stove, or not letting the finished dish rest before serving. Using a starchy potato like Russet can also release more water.

Undercooked Potatoes? This is almost always due to slicing the potatoes too thickly. If your potatoes are still hard after the recommended baking time, simply cover the dish with foil again and bake for another 15 to 20 minutes, or until a knife inserts easily into the center.

Grainy or Curdled Sauce? This happens when dairy is heated too quickly or unevenly. Prevent this by adding your milk and broth mixture gradually while whisking constantly. Our secret weapon, the Dijon mustard, also acts as an emulsifier to help prevent the sauce from breaking.

Serving and Storage Instructions

Serving Suggestions

Right before bringing the casserole to the table, I love to garnish it with a sprinkle of fresh chopped chives or parsley. This adds a wonderful pop of color and a touch of fresh, vibrant flavor that cuts through the richness.

Storage and Make-Ahead Instructions

To Make Ahead. This recipe is perfect for holiday planning. Assemble the entire dish as directed. Bake, covered with foil, for 50-60 minutes. This par-bakes the potatoes. Remove from the oven, let it cool completely on the counter, then cover tightly and refrigerate for up to 48 hours. When ready to serve, remove from the fridge for 30 minutes, then bake uncovered at 350°F for 30-40 minutes until hot and bubbly.

Storing Leftovers. Store any leftovers in an airtight container in the refrigerator for up to 4 days.

Reheating. You can reheat individual portions in the microwave until warmed through. To reheat the entire casserole, place it in a 350°F oven for about 20-25 minutes, or until hot all the way through.

Freezing. While it is possible to freeze scalloped potatoes, dairy-based sauces can sometimes become slightly grainy upon reheating. If you choose to freeze, let the dish cool completely, wrap it tightly in multiple layers of plastic wrap and foil, and freeze for up to 3 months. Thaw in the refrigerator overnight before reheating.

The Perfect Holiday Side Dish

This is truly the ultimate Easter scalloped potatoes recipe. The creamy, foolproof sauce, made special with that hint of Dijon and nutmeg, guarantees a stunning and delicious result every time. It is an impressive side dish that is surprisingly easy to master, freeing you up to enjoy the holiday with your loved ones. I hope this becomes a treasured part of your celebration. Don’t forget to save this recipe for your next holiday gathering!

Frequently Asked Questions

What is the difference between scalloped potatoes and potatoes au gratin?

Traditionally, scalloped potatoes are baked in a cream sauce, while a dish made ‘au gratin’ specifically includes a topping of cheese or breadcrumbs that is browned. Our recipe is a classic scalloped potato dish, but you can easily turn it into potatoes au gratin by adding shredded cheese to the sauce and on top.

What are the best potatoes to use for scalloped potatoes?

Waxy potatoes are the best choice because they hold their shape after baking. I strongly recommend Yukon Gold or red potatoes for their creamy texture and ability to stay intact.

How do I prevent my scalloped potatoes from being watery or the sauce from curdling?

The keys are to use a flour-based roux to thicken the sauce, add the milk mixture gradually, and incorporate our secret ingredient, Dijon mustard, as an emulsifier. Finally, always let the finished dish rest for at least 20 minutes before serving to allow the sauce to set.

Can I prepare these scalloped potatoes ahead of time?

Yes, absolutely. This recipe is ideal for making ahead. You can find detailed step-by-step instructions in the Storage and Make-Ahead section above.

How do you slice potatoes evenly without a mandoline?

The best technique is to create a stable base. Cut the potato in half lengthwise, then place the flat side down on your cutting board. This prevents it from rolling, allowing you to make careful, thin, and even slices with a sharp knife.

Can this recipe be made gluten-free?

Yes, it can. To make the sauce gluten-free, simply replace the all-purpose flour with a 1-to-1 gluten-free flour blend when you are making the roux.