Is there anything more comforting than a warm, creamy dish of Mom’s Scalloped Potatoes? This recipe isn’t just food; it’s a hug on a plate, a memory simmering in a baking dish. With Thanksgiving and the holiday season just around the corner, now’s the perfect time to rediscover this timeless side dish. My mom’s recipe has been a family favorite for generations, and I’ve spent years perfecting it, tweaking it just so to get that perfect balance of tender potatoes, rich sauce, and golden-brown crust. Get ready to bring a taste of home to your table, a dish so simple yet so profoundly satisfying.

I’m excited to share the secrets to making the best scalloped potatoes you’ve ever tasted. I’ve made this dish countless times, experimenting with different types of potatoes, cheeses, and thickening agents. I’ve learned firsthand what works and what doesn’t, and I’m passing that knowledge on to you. Plus, with today’s focus on fresh, seasonal ingredients, I’ll show you how to elevate this classic using high-quality potatoes and dairy, ensuring a dish that’s both comforting and delicious.
Ingredients for the Perfect Scalloped Potatoes
The quality of your ingredients makes all the difference in Mom’s Scalloped Potatoes. Here’s what you’ll need:
- Potatoes: 3 pounds Yukon Gold potatoes are my go-to. They have a creamy texture and hold their shape well during baking. Russet potatoes will also work, but they can be a bit starchier, so rinse them well after slicing. From a nutritional standpoint, potatoes provide potassium and vitamin C.
- Butter: 6 tablespoons unsalted butter, divided. Butter adds richness and flavor. You can substitute with margarine, but the flavor won’t be quite the same.
- All-Purpose Flour: 1/4 cup. This is our thickening agent. You can use gluten-free all-purpose flour for a gluten-free version.
- Milk: 3 cups whole milk. Whole milk creates the creamiest sauce. You can use 2% milk, but the sauce will be a bit thinner. Avoid skim milk, as it lacks the necessary fat for a rich sauce. The calcium content in milk is a great bonus.
- Onion: 1 medium yellow onion, thinly sliced. Onion adds a subtle savory flavor. You can substitute with 1 teaspoon of onion powder if you’re in a pinch, but fresh is best.
- Garlic: 2 cloves garlic, minced. Garlic elevates the flavor profile. Garlic is known for its potential immune-boosting properties.
- Salt and Pepper: To taste. Seasoning is key! Don’t be afraid to be generous.
- Optional: 1/2 cup shredded cheddar cheese or Gruyere. Cheese adds a wonderful cheesy flavor and golden-brown topping. Gruyere offers a more sophisticated, nutty flavor.
Ingredient Science: The starch in the potatoes combines with the flour to thicken the sauce, creating that classic creamy texture. The butter adds richness and helps to brown the topping. The milk provides the liquid base for the sauce. The onion and garlic add savory depth. The cheese (if using) melts into the sauce, adding flavor and texture.
Substitution Tips:
- For a dairy-free version, use unsweetened almond milk or oat milk and a plant-based butter substitute.
- For a spicier kick, add a pinch of cayenne pepper to the sauce.
- For a richer flavor, use heavy cream instead of milk (reduce quantity to 2 cups).
Expert Tips for Scalloped Potato Perfection
Over the years, I’ve learned a few tricks to ensure my Mom’s Scalloped Potatoes turn out perfectly every time. Here are some of my top tips:
- Slice the potatoes thinly and evenly: This is crucial for even cooking. Use a mandoline for consistent slices. Aim for about 1/8-inch thickness.
- Don’t overcook the potatoes: You want them to be tender but not mushy. Test for doneness with a fork.
- Season generously: Potatoes need plenty of salt and pepper. Taste the sauce before baking and adjust the seasoning as needed.
- Use a cast iron skillet: My mom’s secret was using a cast iron skillet. The cast iron heats evenly and creates a beautiful crust on the potatoes.
- Let the potatoes rest before serving: This allows the sauce to thicken slightly and the flavors to meld.
My Testing Notes: I’ve found that pre-cooking the potatoes slightly in boiling water for about 5 minutes can help them cook more evenly in the oven, especially if you’re using a thicker cut of potato. I also like to add a pinch of nutmeg to the sauce for a warm, comforting flavor.
Pro Insights: For extra flavor, try adding a bay leaf to the milk while heating it. Remove the bay leaf before adding the flour mixture. You can also add a layer of caramelized onions between the potatoes for added depth of flavor.
Storage & Substitutions
Storage: Leftover scalloped potatoes can be stored in an airtight container in the refrigerator for up to 3-4 days. Reheat in the oven at 350°F (175°C) until heated through, or microwave in 30-second intervals.
Substitutions:
- Milk: Use half-and-half or heavy cream for a richer sauce.
- Cheese: Try Gruyere, Swiss, or Parmesan cheese for different flavor profiles.
- Onion: Use shallots or leeks for a milder flavor.
- Potatoes: Use sweet potatoes for a sweeter variation.
- Vegan: Use plant-based milk and butter, and nutritional yeast for a cheesy flavor.
Frequently Asked Questions About Scalloped Potatoes
Why are my scalloped potatoes watery?
This can happen if the potatoes aren’t sliced thinly enough or if the sauce isn’t thick enough. Make sure to slice the potatoes thinly and evenly, and ensure the flour is properly incorporated into the butter before adding the milk. Also, don’t overcook the potatoes.
How do I keep my scalloped potatoes from sticking to the dish?
Grease the baking dish well with butter before adding the potatoes. You can also line the dish with parchment paper for easy cleanup.
Can I make scalloped potatoes ahead of time?
Yes, you can assemble the scalloped potatoes ahead of time and store them in the refrigerator for up to 24 hours before baking. Add about 15-20 minutes to the baking time.
What’s the difference between scalloped potatoes and au gratin potatoes?
Scalloped potatoes are typically made with a cream sauce and do not always include cheese. Au gratin potatoes always include cheese, often Gruyere or cheddar.
Can I freeze scalloped potatoes?
While you can freeze scalloped potatoes, the texture may change slightly upon thawing. The sauce can become grainy. If you do freeze them, wrap them tightly in plastic wrap and then foil. Thaw overnight in the refrigerator before reheating.
How can I add more flavor to my scalloped potatoes?
Consider adding different types of cheese, like Gruyere or Swiss. You can also add herbs like thyme or rosemary to the sauce. A pinch of nutmeg also adds warmth and depth.
What kind of potatoes are best for scalloped potatoes?
Yukon Gold potatoes are my top choice because they’re creamy and hold their shape well. Russet potatoes also work, but they can be starchier, so be sure to rinse them well after slicing.

Share the Comfort
Mom’s Scalloped Potatoes are more than just a side dish; they’re a symbol of family, tradition, and comfort. This recipe is a guaranteed crowd-pleaser, perfect for holidays, potlucks, or a cozy weeknight dinner. Now that you have all the secrets to making the perfect scalloped potatoes, it’s time to gather your ingredients and get cooking! Don’t forget to share your creations with me on social media – I can’t wait to see your delicious photos!
If you enjoyed this recipe, be sure to check out my other comforting side dish recipes, like Grandma’s Creamy Mac and Cheese, Roasted Brussels Sprouts with Bacon, and Classic Green Bean Casserole. And for a perfect main course pairing, try my Slow Cooker Pot Roast!
PrintScalloped Potatoes Recipe
Moms Scalloped Potatoes recipe Creamy cheesy comfort food just like Mom made Get the delicious recipe try it today
- Prep Time: 20 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 10 minutes
- Yield: 6-8 servings
- Category: Side Dish
- Cuisine: American
Ingredients
- 3 pounds Yukon Gold potatoes
- 6 tablespoons unsalted butter, divided
- 1/4 cup all-purpose flour
- 3 cups whole milk
- 1 medium yellow onion, thinly sliced
- 2 cloves garlic, minced
- Salt and pepper to taste
- 1/2 cup shredded cheddar cheese or Gruyere (optional)
Instructions
- Preheat oven to 375°F (190°C). Grease a 9×13 inch baking dish with butter.
- Peel and thinly slice the potatoes (about 1/8-inch thick). Slice the onion thinly.
- In a saucepan, melt 4 tablespoons of butter over medium heat. Whisk in the flour until smooth. Gradually whisk in the milk, stirring constantly until the sauce thickens.
- Stir in the minced garlic, salt, and pepper. Add cheese if using. Remove from heat.
- Layer half of the potatoes in the prepared baking dish, followed by half of the onion. Pour half of the sauce over the potatoes and onion. Repeat layers.
- Dot the top with the remaining 2 tablespoons of butter.
- Cover the baking dish with foil and bake for 30 minutes. Remove the foil and bake for another 20 minutes, or until the potatoes are tender and the top is golden brown.
- Let the potatoes rest for 10 minutes before serving.


