There’s a reason this dish shows up on holiday tables year after year, isn’t there? Cheesy Scalloped Potatoes are the epitome of Christmas comfort food: a warm, bubbling dish filled with tender potatoes, rich cream, and melty cheese straight from the oven. It’s the side dish that everyone secretly hopes there will be leftovers of. And honestly, it’s just not a holiday feast in my home without that familiar, creamy casserole sitting right next to the main course. I’m so glad you’re here to make it with me.
Top Reasons To Make It
This recipe earns its place on your holiday menu for so many reasons. It’s the ultimate make-ahead dish, letting you prep it hours before your guests arrive so you’re not stuck in the kitchen. The creamy, cheesy layers are an absolute crowd-pleaser that pair beautifully with so many Christmas dinner ideas. And perhaps best of all, it fills your entire home with the most incredible, comforting aroma that just smells like the holidays.
Ingredients
- 3 lbs Russet potatoes: peeled and thinly sliced for those perfect, tender layers.
- 3 tbsp butter: for a rich, savory base to our sauce.
- 1 small yellow onion: finely diced to add a subtle sweetness.
- 3 cloves garlic: minced, because everything’s better with garlic.
- 1/4 cup all-purpose flour: to help thicken our creamy sauce.
- 2 cups whole milk: for a creamy, luxurious texture.
- 1 cup chicken or vegetable broth: adds depth of flavor and thins the sauce perfectly.
- 1 cup heavy cream: because this is a celebration!
- 2 cups sharp cheddar cheese: freshly shredded for the best melt.
- 1/2 cup grated Parmesan cheese: adds a delicious salty, nutty flavor.
- 1 tsp fresh thyme leaves: for a little herbal freshness.
- 1/2 tsp smoked paprika: adds a hint of warmth and gorgeous color.
- Salt and black pepper: to taste.
Instructions
- Preheat your oven to 375°F (190°C) and generously butter a 9×13 inch baking dish.
- Peel the potatoes and slice them into 1/8-inch thick rounds. A mandoline slicer makes this quick and ensures even cooking, but a sharp knife works just fine.
- Melt the butter in a large saucepan or Dutch oven over medium heat. Add the diced onion and cook until softened, about 5 minutes. Add the garlic and cook for one more minute until fragrant.
- Sprinkle the flour over the onions and garlic, whisking constantly to form a paste. Cook for about a minute to get rid of the raw flour taste.
- Slowly pour in the milk, broth, and heavy cream, whisking constantly to prevent any lumps from forming. Bring the mixture to a gentle simmer and let it thicken for 3-4 minutes.
- Remove the saucepan from the heat and stir in 1 1/2 cups of the cheddar cheese, the Parmesan, thyme, smoked paprika, a good pinch of salt, and plenty of black pepper. Stir until the cheese is melted and smooth.
- Arrange a single layer of potato slices in the bottom of your prepared baking dish. Pour about a third of the cheese sauce over the layer. Repeat the process, creating layers of potatoes and sauce until everything is used up, finishing with a layer of sauce on top.
- Sprinkle the remaining 1/2 cup of cheddar cheese over the top. Cover the dish tightly with foil and bake for 45 minutes.
- Remove the foil and continue baking for another 30-40 minutes, or until the potatoes are so, so tender, the top is a beautiful golden brown, and the sauce is bubbly around the edges.
- Let the dish rest for about 15 minutes before serving. This helps the sauce set beautifully so you get perfect slices.
Cheesy Scalloped Potatoes Recipe Tips
- Slice your potatoes evenly. This is the secret to them all cooking at the same rate. No one wants some slices raw and others mushy.
- Don’t skip the rest time! Letting the casserole sit for 15 minutes after baking is non-negotiable for a dish that holds its shape when served.
- For the absolute best flavor, buy a block of cheese and shred it yourself. Pre-shredded cheese contains anti-caking agents that can make your sauce grainy.
- If the top is browning too quickly, just tent it loosely with a piece of foil.
- Make it ahead! Assemble the entire dish, cover, and refrigerate for up to 24 hours before baking. You may just need to add 5-10 extra minutes to the baking time.
Variations & Substitutions
This classic recipe is wonderfully adaptable. For a lighter version, you can swap the whole milk and heavy cream for 3 cups of half-and-half. Feel free to play with the cheeses, too; Gruyère, fontina, or even a little gouda would be lovely. If you’d like to add some protein, a cup of diced smoked turkey is a delicious add-in. And for a vegetarian version, simply ensure you’re using vegetable broth.
Serving Ideas & Pairings
This is the ultimate supporting actor for your holiday food lineup. It’s a natural partner to a classic roasted turkey or a beautiful glazed ham. For a smaller Christmas Eve dinner, it pairs wonderfully with a simple roasted chicken or some seared pork chops. Round out your Christmas dinner dishes with some roasted green beans, a bright citrus salad, and some fluffy rolls to soak up that extra sauce. So good.
Storage & Reheating
Leftovers will keep in an airtight container in the refrigerator for 3-4 days. To reheat, the oven is your best friend for restoring that creamy texture. Place portions in an oven-safe dish, add a tiny splash of milk to keep things moist, cover with foil, and warm at 350°F until heated through, about 20 minutes. You can also reheat single servings in the microwave, though the texture won’t be *quite* as perfect. I don’t recommend freezing this dish, as the creamy sauce can separate and become grainy when thawed.
Frequently Asked Questions
- Can I use a different type of potato? Russets are my top choice because their starchiness helps thicken the sauce, but Yukon Golds will also work beautifully and yield a creamier result.
- What’s the difference between scalloped potatoes and au gratin? Traditionally, scalloped potatoes are baked in a cream sauce while au gratin includes cheese. But today, the terms are often used interchangeably, and this cheesy version is the best of both worlds!
- How can I tell when the potatoes are done? The potatoes are done when you can easily pierce them with a paring knife with no resistance. If the top is getting too dark but the potatoes aren’t tender, just cover it back up with foil.
- Can I add this to my Christmas charcuterie board? While it’s served hot, a small ramekin of these rich potatoes could be a fun and unexpected warm element on a holiday grazing table!