Slow Cooker Creamy Scalloped Potatoes

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Slow Cooker Creamy Scalloped Potatoes

These potatoes are smothered in a rich, savory mushroom cream sauce, making them the perfect side dish for holiday hams, roasted chicken, or a simple weeknight dinner.

  • Prep time: 15 minutes

  • Cook time: 4–5 hours (High) or 7–8 hours (Low)

  • Servings: 6–8 people

Ingredients

  • 5 lbs Yukon Gold or Russet potatoes (peeled and sliced into 1/8-inch rounds)

  • 2 cans (10.5 oz each) Condensed Cream of Mushroom soup

  • 1 cup Whole milk or heavy cream

  • 1/2 cup Sour cream

  • 1 small Yellow onion, finely diced

  • 2 cloves Garlic, minced

  • 1 tsp Dried thyme or rosemary

  • Salt & Black pepper to taste

  • Optional: 2 cups shredded Sharp Cheddar cheese

Instructions

  1. Prepare the Pot: Grease the inside of a 6-quart slow cooker with butter or non-stick spray.

  2. Layer Potatoes: Place half of the sliced potatoes into the bottom of the slow cooker. Season lightly with salt and pepper.

  3. Mix the Sauce: In a medium bowl (or the mug shown in the image), whisk together the condensed soup, milk, sour cream, diced onion, garlic, and herbs.

  4. Combine: Pour half of the sauce over the first layer of potatoes. Add the remaining potatoes and top with the rest of the sauce.

  5. Cook: Cover and cook on High for 4–5 hours or Low for 7–8 hours until the potatoes are fork-tender.

  6. Finish (Optional): If using cheese, sprinkle it on top during the last 20 minutes of cooking and cover until melted.

Description & Notes

This recipe replaces the traditional flour-and-butter roux with condensed soup for a “dump-and-go” convenience. The slow cooking process allows the starch from the potatoes to naturally thicken the sauce into a velvety consistency.

  • Note on Potato Choice: Yukon Golds are best because they hold their shape well. Russets will become very soft and almost mash-like (still delicious, just a different texture!).

  • Slicing Tip: Use a mandoline slicer for perfectly even slices; this ensures all potatoes cook at the same rate.

Tips for Success

  • Prevent Browning: To keep the potatoes from turning grey before cooking, keep sliced potatoes in a bowl of cold water until you are ready to layer them. Pat them dry before adding to the crockpot.

  • Don’t Peek: Every time you lift the lid, you lose about 15–20 minutes of heat. Keep it closed!

  • Thicker Sauce: if the sauce looks too thin at the end, leave the lid off for the final 30 minutes of cooking.

Nutritional Info (Per Serving)

  • Calories: 310 kcal

  • Total Fat: 12g

  • Carbohydrates: 42g

  • Protein: 8g

  • Sodium: 650mg

The Benefit

The primary benefit of this recipe is oven space management. During big holidays like Thanksgiving or Christmas, the oven is usually occupied by meat. Moving the side dishes to the slow cooker frees up your kitchen flow and keeps the potatoes warm for hours without drying them out.

Q&A

Q: Can I add meat to this? A: Absolutely. Diced ham or cooked bacon bits are fantastic additions that turn this side dish into a full meal.

Q: Why are my potatoes still hard after 4 hours? A: This usually happens if the slices are too thick or if the slow cooker was overfilled. Make sure your slices are roughly inch thick and that the sauce is distributed evenly.

Q: Can I make this dairy-free? A: Yes, you can use “Cream of Mushroom” style coconut-based soups and almond or oat milk, though the flavor profile will be slightly sweeter.

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