These Slow Cooker Scalloped Potatoes are creamy, cheesy, and oh-so-comforting! Just layer sliced potatoes with cheese and milk, and let the slow cooker do all the work for you.
I love that I can set it and forget it. Perfect for when I want to relax while dinner cooks itself—who wouldn’t want that? Plus, the smell is amazing as it cooks! 🥔💖
Key Ingredients & Substitutions
Potatoes: Russet potatoes are perfect because of their starchy nature, making them creamy when cooked. If you prefer a waxier potato, go for Yukon Golds, which have a nice buttery flavor.
Onion: A medium onion adds a sweet and savory depth. If you’re not a fan of onions, shallots provide a milder taste, or you can leave it out entirely for a simpler dish.
Cheese: Sharp cheddar gives a bold flavor. If you’d like a different taste, try using Gruyère for a nuttier taste or a blend of mozzarella and cheddar for a creamier melt.
Milk/Cream: Whole milk offers a rich texture, while heavy cream makes it even creamier. For a lighter option, almond or oat milk can work, just keep in mind they’ll change the flavor slightly.
How Do I Make a Smooth Cheese Sauce Without Lumps?
Getting a smooth cheese sauce is key to this recipe. Start by cooking your butter and garlic to infuse flavor before adding the flour to create a roux. This helps thicken the sauce without clumps.
- Whisk continuously while adding milk or cream gradually. This helps break up any potential lumps.
- Cook over medium heat until the sauce thickens, which usually takes 3-5 minutes. Stir often!
- Season well once thickened to ensure the cheese sauce has flavor.
How to Make Slow Cooker Scalloped Potatoes
Ingredients You’ll Need:
For the Dish:
- 4 large russet potatoes, thinly sliced
- 1 medium onion, thinly sliced
- 3 cloves garlic, minced
- 2 cups shredded sharp cheddar cheese
- 2 cups whole milk or heavy cream
- 4 tablespoons unsalted butter
- 3 tablespoons all-purpose flour
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 teaspoon dried thyme or parsley (optional)
- Fresh parsley or chives, chopped (for garnish)
How Much Time Will You Need?
This tasty dish takes about 15 minutes to prepare, and then it cooks in your slow cooker for 6 to 7 hours on low or 3 to 4 hours on high. So, set it up in the morning and enjoy a delicious dinner in no time!
Step-by-Step Instructions:
1. Prepare the Slow Cooker:
Start by lightly greasing the inside of your slow cooker with some butter or a non-stick cooking spray. This helps keep everything from sticking and makes for easier cleanup later!
2. Make the Cheese Sauce:
In a medium saucepan, melt the butter over medium heat. Add the minced garlic and sauté for about 1 minute until it smells delicious. Next, whisk in the flour and cook for about 2 minutes, stirring constantly to form a smooth roux.
3. Add the Milk/Cream:
Gradually whisk in the milk or cream to your roux, trying to avoid any lumps. Keep stirring as it cooks for about 3-5 minutes until the sauce thickens. Once thick, season it with salt, pepper, and thyme or parsley if you’re using it, and then remove it from heat.
4. Layer Your Ingredients:
Now it’s time to layer! Start with a layer of sliced potatoes at the bottom of the slow cooker, followed by a layer of onions. Pour a bit of the cheese sauce over these layers and sprinkle some cheddar cheese on top of that.
5. Repeat the Layers:
Continue this process until all the potatoes, onions, sauce, and cheese are used up. Make sure to finish with a big layer of cheese on top to get that golden, bubbly finish!
6. Cooking Time:
Cover the slow cooker and let it work its magic. Cook on low for 6 to 7 hours or on high for 3 to 4 hours, until the potatoes are tender and the top is bubbly and golden.
7. Rest and Serve:
Once the cooking time is up, turn off the slow cooker and let the scalloped potatoes rest for 10-15 minutes before digging in. This helps everything settle beautifully.
8. Garnish and Enjoy:
Before serving, sprinkle some fresh chopped parsley or chives on top for a pop of color and flavor. Enjoy your creamy, cheesy slow cooker scalloped potatoes warm!
Can I Use Different Types of Potatoes?
Absolutely! While russet potatoes work great due to their starch content, you can also use Yukon Gold potatoes for a creamier texture. Just keep in mind they may cook a bit faster.
Can I Make This Recipe Ahead of Time?
Yes, you can prepare the dish in advance! Layer everything in the slow cooker and refrigerate it overnight. Just make sure to let it sit at room temperature for about 30 minutes before cooking to ensure even cooking.
How Do I Store Leftover Scalloped Potatoes?
Store any leftovers in an airtight container in the fridge for up to 3 days. To reheat, simply microwave individual portions or warm on the stove over low heat. You can add a splash of milk for extra creaminess!
Can I Add Other Vegetables?
Definitely! Feel free to add layers of other vegetables like spinach, zucchini, or bell peppers for added flavor and nutrition. Just ensure they are sliced thinly so they cook evenly with the potatoes.
