Description

This Crock Pot Scalloped Potatoes recipe offers a creamy, cheesy, and perfectly tender potato dish that’s effortlessly made in a slow cooker. Layers of thinly sliced Yukon gold potatoes, onions, and white cheddar cheese are cooked in a flavorful milk sauce enhanced with mustard, salt, and pepper. Perfect as a comforting side dish for any meal, this hands-off recipe ensures a golden bubbly finish with minimal prep.

Ingredients

Scale

Potatoes and Vegetables

3 lbs Yukon gold potatoes (about 6, sliced 1/8″ thick)
1 onion (thinly sliced)

Milk Sauce

3 cups whole milk
3 tbsp heaping cornstarch
2 tbsp prepared yellow mustard
2 1/2 tsp salt
3/4 tsp black pepper

Cheese

8 oz white cheddar cheese (grated)

Instructions

Prepare the Crock Pot: Grease the inside of your crock pot with oil or cooking spray to prevent sticking and ensure easy cleanup.
Layer Ingredients: Start by layering one third of the thinly sliced onions, potatoes, and white cheddar cheese inside the crock pot. Repeat this process twice more, finishing with a final layer of potatoes and cheese on top.
Make the Milk Sauce: In a large measuring cup or bowl, whisk together the whole milk, heaping cornstarch, prepared yellow mustard, salt, and black pepper until fully combined and smooth.
Pour Sauce Over Layers: Pour the prepared milk mixture evenly over the layered potatoes, onions, and cheese in the crock pot.
Cook the Dish: Cover and cook on high for 3 to 4 hours, or until the potatoes are tender when pierced with a fork and the sauce is golden and bubbly on top.
Rest Before Serving: Once cooking is complete, unplug the crock pot and let the scalloped potatoes rest inside for 20 minutes to set and thicken before serving.

Notes

Use Yukon gold potatoes for their creamy texture and ability to hold shape well during slow cooking.
Adjust salt and pepper to taste if desired.
You can substitute whole milk with 2% milk; however, whole milk gives a richer sauce.
For a thicker sauce, increase cornstarch slightly but do not exceed 4 tablespoons to avoid a gummy texture.
Allowing the dish to rest after cooking helps the sauce thicken and makes slicing easier.
Make sure to slice potatoes thinly (1/8 inch) for even cooking and a creamy texture.

Prep Time: 20 minutes
Cook Time: 3 hours 30 minutes
Category: Side Dish
Method: Slow Cooking
Cuisine: American

Keywords: crock pot scalloped potatoes, slow cooker potatoes, creamy scalloped potatoes, cheesy potatoes, easy side dish