Slow Cooker Foodie

Slow Cooker Scalloped Potatoes

Easy slow cooker scalloped potatoes recipe, homemade with simple ingredients. Full of gold potatoes, sweet potatoes as well as rich and creamy cheese sauce made from cheddar cheese and mozzarella cheese.

Adding potatoes and cheese to any meal is sure to satisfy your tastebuds and fill you up! This recipe blends the two in a creamy mixture that will have you coming back for more. If you can’t get enough, check out these other classic potato recipes too: Slow Cooke Baked Potatoes or Slow Cooker Mashed Potatoes.

Slow Cooker Scalloped Potatoes With Cheese Served in White Plate With White Background

How to make easy slow cooker scalloped potatoes recipe from scratch?

  1. Saute onions and garlic- Until partially softened. 
  2. Sprinkle flour- Until mixture becomes golden brown.
  3. Mix in milk- Until sauce is smooth.
  4. And other ingredients- This includes Italian seasoning, salt, pepper, cheddar cheese, mozzarella cheese.
  5. Mix- Until sauce is smooth.
  6. Add potatoes in slow cooker – In an alternating pattern.
  7. Pour half the cheese sauce- And spread evenly.
  8. Arrange another layer of potatoes – In an alternating pattern.
  9. Pour remaining cheese sauce on top – And spread evenly.
  10. Cover- And cook.
  11. Sprinkle parmesan cheese- In final few minutes
  12. Cover and cook- Until cheese is melted.

What is the difference between scalloped and au gratin potatoes?

The difference is that scalloped ones are traditionally cut thicker and covered in a cream sauce, infused with garlic and fresh herbs. Au gratin potatoes are thinner, covered in a cheese sauce and then topped with more cheese or bread crumbs before being baked. While similar, they offer unique tastes!

Why are my scalloped potatoes watery?

If you used a pre-prepped potato from the refrigerator section in markets instead of slicing your own, they can have preservatives that make them a bit watery. If you stored your potatoes in water to prevent discoloring, be sure to drain them well and pat them dry before adding them to your dish. Also, make sure to measure liquid ingredients properly with measuring cups to prevent too much liquid being added.

Why are my potatoes still hard? How to fix it?

This means that they are under-cooked and need to be cooked for longer.

Why did my cheese mixture curdle? How to fix it?

Cheese-based sauces can curdle for several reasons: There might not be enough fat in the sauce; skim milk often curdles much more quickly than fattier dairy products. High heat can also cause your sauce to curdle; low and slow is the ideal option. It would help if you never boiled a dairy-based sauce.

Cheesy Potatoes (Sweet Potatoes and Golden Potatoes) With Italian Herbs- Closeup Shot

Variations for homemade potatoes au gratin

Use only one kind of potato – Rather than using both.

Use a variety of potatoes – Try Laura potatoes, Tajfun potatoes, Melody potatoes, etc. 

Make it creamier – Mix in some cream cheese at the end. Cover and cook until fully melted.

Add bacon – Use bacon bits as a topping at the end.

Try other cheeses – Such as Colby jack, blue cheese, provolone cheese, etc. Freshly shredded is best as it doesn’t have any preservatives that create a chalky flavor/ texture.

Use other herbs – Such as fresh basil, cilantro, thyme, chives, rosemary, etc.

Make it spicy – Add red chili flakes, jalapenos, or even cayenne if you prefer more heat.

Add meat – Try pre-cooked ham, shredded chicken, beef, etc.

Add veggies – Such as carrots, shallots, kale, mushrooms, peppers, etc. 

Use other seasonings- Try using Italian, Mexican, Cajun, Indian, or Greek seasoning blends. The overall flavor changes based on your choice of seasoning.

Make it vegan – Use vegan cheese, soy milk, plant-based butter, etc.

Tips and techniques for simple scalloped cheesy potatoes

How to prep potatoes? Wash the skins, pat the potatoes dry, and cut them in half.

Avoid cutting potatoes too thick – Because they will take too long to cook. Quarter-inch thickness is best 

What kind of potatoes to use? Go with Yukon Gold/sweet potatoes or whatever suits your preference. 

Cooking time may vary – Because this depends on brand of slow cooker and how thick potatoes were sliced.

Adjust seasoning– Add more or less according to your preference.

Spread potatoes evenly in the crockpot– This allows them to cook evenly. A little overlap is perfectly fine.

What size crockpot to use? I recommend a 6 quart or larger slow cooker for even cooking.

Fresh ingredients vs. Frozen ingredients – Use fresh ingredients because they taste better and look better in dishes. Also, they don’t release a lot of water during cooking.

How to know when the potatoes are done cooking? They are ready when they are fork- tender upon pricking.

Use freshly shredded cheese– Because they don’t have a chalky after-taste.

Spoonful of Cheesy Potato Au Gratin in White Plate Prepared in Crockpot


Refrigerate– In a sealed container for up to 3 days.

Freeze– I do not recommend freezing this dish as dairy does not thaw well and can separate.

Reheat– In microwave.

More Slow Cooker sides dishes

Slow Cooker Scalloped Potatoes

Prep Time: 20 minutes
Cook Time: 3 hours
Total Time: 3 hours 20 minutes
Easy slow cooker scalloped potatoes recipe, homemade with simple ingredients. Full of gold potatoes, sweet potatoes as well as rich and creamy cheese sauce made from cheddar cheese and mozzarella cheese.
Yield: 6 People



  • Heat butter in a nonstick saucepan over medium-high heat.
  • Add onions, garlic and saute for about 2 minutes until garlic is fragrant and onion is partially softened.
  • Sprinkle flour while whisking constantly until mixture becomes golden-brown in color and smells nutty.
  • Pour milk, while constantly whisking until sauce is smooth and there are no lumps.
  • Continue cooking until sauce becomes thick.
  • Remove from heat.
  • Add Italian seasoning, salt, pepper, cheddar cheese, mozzarella cheese.
  • Mix until cheese is melted and sauce is smooth. Keep aside.
  • Grease slow cooker with oil.
  • Place half the slices of gold potatoes and sweet potatoes in an alternating pattern in slow cooker (6 quart or larger). They can overlap.
  • Pour half the cheese sauce on top of the potatoes and spread it as evenly as possible.
  • Arrange another layer of potatoes on top of the sauce.
  • Pour remaining cheese sauce on top and spread it out as evenly as possible.
  • Jiggle the crockpot slightly so that the sauce spread out further along the sides too. Do not mix!
  • Cover and cook on High heat for 3-4 hours or until the potatoes are tender.
  • Optional step: My mom does this but I usually skip this step. Spread a few sheets of paper towels or a clean thin dish towel on top of the crockpot. It should be overhanging on the sides of the crockpot. Then, put the lid. The towel will absorb excess moisture and prevent "soupy potatoes".
  • In the final 15 minutes, sprinkle parmesan cheese on top. Also, sprinkle fresh parsley.
  • Cover and continue cooking until cheese is melted. Enjoy!


  • Read all my tips above.
  • Leftovers can be stored in a sealed container in the fridge for up to 3 days and reheated in the microwave. 


Calories: 465kcal, Carbohydrates: 48g, Protein: 18g, Fat: 23g, Saturated Fat: 14g, Trans Fat: 1g, Cholesterol: 68mg, Sodium: 480mg, Potassium: 935mg, Fiber: 6g, Sugar: 11g, Vitamin A: 16787IU, Vitamin C: 20mg, Calcium: 450mg, Iron: 2mg
Course: Side Dish
Cuisine: American
Calories: 465
Author: Abeer Rizvi

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