Layers of thinly sliced potatoes and chopped onion are slow-cooked with a creamy white sauce. Ham and melted Cheddar cheese make this dish a family favorite.
Preparation Time
15 mins
Cooking Time
9 hr
Total Time
9 hr 15 mins
Calories
394 Calories
Recipe Instructions
Step 1
Mix water and cream of tartar in a large bowl.
Step 2
Stir potatoes into water mixture until potatoes are well coated; drain.
Step 3
Layer potatoes and onion in a slow cooker; season with salt and black pepper.
Step 4
Heat milk and flour in a saucepan over medium heat, stirring often, until boiling, about 5 minutes; season with salt and black pepper.
Step 5
Pour about half the milk sauce over the potato mixture.
Step 6
Scatter Cheddar cheese and ham into the slow cooker; cover with remaining milk sauce.
Step 7
Cook on Low setting for 9 to 10 hours or on High for 4 1/2 to 5 hours.