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Glorious 30 Minute Creamy Scalloped Potatoes

By Daniel Carter on December 9, 2025

Creamy Scalloped Potatoes

You know those nights when you just need a hug on a plate? For me, that’s always been about a big, steaming dish of Creamy Scalloped Potatoes. I’m Daniel, and when I started Reciqa, it was because I realized cooking should feel like coming home—simple, warm, and always leading to good memories. I’m not about fussy techniques or ingredients you can’t pronounce. I just love sharing recipes that truly taste amazing and bring people together, whether it’s a busy Tuesday or a big holiday feast.

This potato gratin is the absolute pinnacle of comfort food for our family. Trust me, once you get the technique down for these tender, sauce-drenched slices, you’ll be making them every chance you get. This recipe proves that the best food is often the most straightforward.

Creamy Scalloped Potatoes - detail 1

Why You Will Love This Creamy Scalloped Potatoes Recipe

I think this recipe is going to become a staple at your house, just like it is at mine! It’s the perfect balance of rich flavor and total ease. You’ll be shocked at how quickly this comes together, especially since it tastes like it simmered all day long.

  • The texture is unbeatable: tender potatoes swimming in a homemade sauce.
  • It’s surprisingly fast to put together—less than 20 minutes of prep!
  • The garlic and thyme give the creamy sauce a fantastic, savory depth.
  • It’s pure, classic comfort food that pairs with almost anything.

Gathering What You Need for Creamy Scalloped Potatoes

Before we dive into the sauce magic, let’s talk tools. You don’t need a commercial kitchen for this, but a couple of items really help make the process smooth and ensure those potatoes cook evenly. Getting your equipment ready first means less scrambling later!

Essential Equipment List

  • Medium ceramic baking dish (lightly greased)
  • Large pot for making the sauce
  • Large mixing bowl for tossing
  • Mandolin slicer or a very sharp knife
  • Silicone spatula or sturdy spoon

Ingredients for the Perfect Creamy Scalloped Potatoes

We’re keeping this simple, friends. The magic here is in the quality of the potatoes and the richness of the sauce base. Yukon Golds are my absolute favorite because they hold their shape beautifully but still cook up creamy. You’ll need about five pounds for a good, hearty dish. Don’t sweat the cheese—Parmesan is optional, but wow, does it add a salty kick!

Here’s what you need to gather up before we start melting butter:

Item Amount
Yukon Gold Potatoes 5 pounds
Unsalted Butter 2 tablespoons
Garlic (minced or pressed) 2 cloves
All Purpose Flour 1 tablespoon
Heavy Cream 1 cup
Parmesan Cheese (optional) ½ cup
Fresh Thyme 1 teaspoon
Kosher Salt ½ teaspoon
Black Pepper ½ teaspoon

Ingredient Notes and Substitutions

Listen, the slicing is everything here. You absolutely must slice those potatoes thin—I’m talking paper thin, about 1/16th of an inch. If they’re too thick, they won’t cook evenly, and you’ll end up with some crunchy bits. If you have a mandolin, now is its shining moment! Also, if heavy cream is just too much for your table tonight, don’t panic. You can easily swap it out for whole milk or half and half. It will make the sauce a little lighter, but it will still be delicious and comforting.

Step-by-Step Guide to Making Creamy Scalloped Potatoes

Alright, let’s get cooking! This process moves pretty quickly once you get the slicing done, so make sure your oven is warming up while you tackle the sauce. We want everything ready to go at the same time so those potatoes soak up all that creamy goodness.

Preparing the Potatoes and Building the Roux

First things first: get that oven humming at 400°F and make sure your baking dish is lightly greased. Now, grab your Yukon Golds. This step takes patience, but it’s non-negotiable for great potato gratin! Use your mandolin or a super sharp knife to get those slices uniform, aiming for about 1/16th of an inch. Seriously, thin is in here!

Next, we build flavor in a large pot over medium heat. Melt your two tablespoons of butter. Toss in the minced garlic and let it sizzle just until you can really smell it—we don’t want it browning, just waking up! Now, sprinkle in that tablespoon of flour. Stir that constantly for a good minute or two. That’s your roux, the secret base for thickening our sauce. Keep stirring so it doesn’t clump on the bottom.

Finishing the Cream Sauce and Assembling the Dish

Once the roux smells a little nutty, slowly whisk in the heavy cream. Keep whisking! It will start bubbling and thickening up pretty quickly, usually taking about five minutes until it coats the back of your spoon nicely. Once it’s thick, pull it right off the heat. Now is the time to add flavor: stir in the Parmesan (if you’re using it—and you should!), the fresh thyme, salt, and pepper. Give it a good mix until it’s smooth, and let it cool down just a touch.

In a big bowl, toss all those gorgeous, thin potato slices with the warm sauce. Make sure every single slice gets coated! Then, gently stack them up vertically in your prepared baking dish. I like arranging them snuggly side-by-side; it helps them cook evenly. Pour any leftover sauce right over the top. If you saved some Parmesan, sprinkle it on now for that beautiful crust later.

Creamy Scalloped Potatoes - detail 2

Baking Times and Achieving Golden Perfection

We’re going to bake this in two stages, which is the trick to getting tender potatoes without burning the top layer. Cover the dish tightly with aluminum foil and slide it into that 400°F oven. Let it steam and soften for exactly 30 minutes. This steam helps cook the potatoes through evenly.

After those 30 minutes are up, carefully remove the foil. This is where the magic happens! Put it back in the oven uncovered and bake for another 30 minutes. You are looking for a deep golden brown color on top and for the potatoes to be completely fork-tender. When they look perfect, pull them out and, this part is important, let them rest for about 10 minutes before you dig in. They need that little rest time to set up!

Tips for Achieving Expert Creamy Scalloped Potatoes

Getting these potatoes right is all about small details that add up to a huge flavor payoff. Don’t underestimate these quick tweaks—they separate a good dish from an absolutely stellar one. I learned these tricks the hard way, so you don’t have to!

  • Always slice those potatoes uniformly, no excuses! If you don’t have a mandolin, use the sharpest knife you own and take your time. Uneven slices mean some parts are mushy while others are still hard.
  • If you have time, soak the slices in cold water after cutting to wash off excess starch. This prevents the sauce from getting gummy later, but make sure you pat them bone dry before tossing them in the sauce!
  • Don’t skip the brief cooking of the flour in the butter—that’s your roux. Cooking it for a minute or two eliminates that raw flour taste, ensuring your cream sauce tastes rich, not chalky.
  • Letting the finished dish rest for 10 minutes after it comes out of the oven is crucial. It lets the sauce settle and thicken up perfectly, making serving much cleaner.

Storing and Reheating Your Creamy Scalloped Potatoes

We rarely have leftovers in my house, but when we do, storing them properly keeps that creamy texture intact. These potatoes are best eaten within three days. Don’t just microwave them, though—that can make the sauce separate or turn the edges tough. A little care goes a long way in bringing them back to life.

Storage Method Reheating Tip
Airtight container in the fridge Cover tightly with foil and reheat slowly in a 325°F oven until warmed through.
Freezer (up to 1 month) Thaw overnight in the fridge before reheating slowly in the oven.

Frequently Asked Questions About Creamy Scalloped Potatoes

I get so many questions about this recipe, especially about getting that perfect texture. Here are the four things folks ask me about most often when they’re getting ready to bake!

Q1. Why are my scalloped potatoes coming out crunchy in the middle?
Nine times out of ten, this means your potato slices weren’t uniform! If some are thick and some are thin, the thin ones cook too fast and the thick ones stay hard. Make sure you use that mandolin or a very steady hand to get them all about 1/16th of an inch thick. Also, make sure you cover them with foil for the first half of baking to trap the steam!

Q2. Can I really use milk instead of heavy cream?
Yes, you totally can! If you swap the heavy cream for whole milk or even half and half, the dish will be lighter, which some people prefer. Just know that since you’re using less fat, the sauce won’t be quite as thick or decadent. You might need to cook the roux a tiny bit longer to compensate.

Q3. Do I have to use Parmesan cheese?
Nope, it’s optional! I love it because that Parmesan adds a salty, sharp depth that cuts through the richness of the cream. If you leave it out, just make sure you season the sauce really well with that kosher salt and pepper. You won’t miss much, but you will lose that lovely browned crust.

Q4. Can I prep the potatoes ahead of time to save time?
Absolutely! Once you slice your potatoes, you can toss them in a bowl of cold water to stop them from browning and wash off starch. But, and this is crucial, you must dry them completely before adding them to the sauce. Excess water will dilute your roux and make the final dish watery instead of creamy.

Understanding the Nutrition in Creamy Scalloped Potatoes

Now, I’m not a nutritionist, and these numbers are just my best guess based on the ingredients listed—especially since cheese is optional! This is comfort food, so we know it’s rich, but it’s good to have a general idea of what you’re serving up. Enjoy it guilt-free!

Nutrient Amount (per serving)
Calories 350
Fat 22g
Carbohydrates 32g
Protein 8g

Remember, these figures are estimates and will change if you swap out the heavy cream for milk!

Share Your Experience Making This Dish

I truly hope these Creamy Scalloped Potatoes bring as much comfort to your table as they do mine. When you try this recipe, please come back and tell me how it turned out! Drop a rating below, or share a picture on social media—I love seeing my recipes in your kitchens!

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Creamy Scalloped Potatoes

Glorious 30 Minute Creamy Scalloped Potatoes


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  • Author: Daniel
  • Total Time: 80 minutes
  • Yield: 8 servings
  • Diet: Vegetarian

Description

This Creamy Scalloped Potatoes recipe delivers tender, thinly sliced potatoes enveloped in a rich, homemade cream sauce. It is a comforting side dish perfect for any meal.


Ingredients

  • 5 pounds Yukon gold potatoes
  • 2 tablespoons unsalted butter
  • 2 cloves garlic, minced or pressed
  • 1 tablespoon all purpose flour
  • 1 cup heavy cream (substitute whole milk or half and half)
  • ½ cup Parmesan cheese (optional)
  • 1 teaspoon fresh thyme
  • ½ teaspoon kosher salt
  • ½ teaspoon black pepper


Instructions

  1. Heat the oven to 400°F and lightly grease a medium sized ceramic baking dish.
  2. Using a mandolin or sharp knife, slice the potatoes as thinly as possible (about 1/16th of an inch).
  3. In a large pot over medium heat, melt the butter with the garlic until aromatic.
  4. Stir in the flour to create a roux, and cook for 1-2 minutes. Then stir in the heavy cream and continue to stir until thickened, about 5 minutes.
  5. Stir in the parmesan, thyme, salt and pepper until combined and smooth.
  6. Remove the sauce from the heat and let cool slightly.
  7. Add the sliced potatoes to a large bowl and pour the sauce over top. Gently toss to coat the potatoes in the sauce.
  8. Stack the potato slices and arrange them upright in the greased baking dish. Pour any leftover sauce over the potatoes. Sprinkle a little extra parmesan over top if desired.
  9. Tent with aluminum foil and bake at 400°F for 30 minutes. Then remove the foil and bake uncovered for another 30 minutes or until the potatoes are golden brown and cooked through.
  10. Remove from the oven and let cool for about 10 minutes before serving.

Notes

  • For a lighter dish, substitute milk or half and half for the heavy cream.
  • Slicing potatoes uniformly is key to even cooking; use a mandolin if you have one.
  • The potatoes can be soaked in cold water after slicing to remove excess starch, but dry them completely before adding the sauce.
  • Prep Time: 20 minutes
  • Cook Time: 60 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

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