01 -
Peel the russet potatoes and slice them thinly, approximately 3 mm thick, using a sharp knife or mandoline for even results. Submerge the slices in a bowl of cold water to prevent discoloration while preparing other components.
02 -
In a large mixing bowl, whisk together condensed cream of chicken soup, sour cream, melted butter, chicken broth or milk, garlic powder, onion powder, and season generously with salt and black pepper until smooth.
03 -
Lightly grease the inside of the slow cooker or line it for easier cleanup. Drain the potato slices thoroughly and pat them dry with paper towels. Arrange half of the sliced potatoes in an even layer at the base. Top with half of the shredded cheese, then pour half of the sauce evenly over the layer. Repeat the layering with the remaining potatoes, cheese, and sauce.
04 -
Cover and cook on the low setting for 6 to 8 hours, or on high for 3 to 4 hours, until the potatoes are fork-tender and the sauce is bubbling. In the last 30 minutes, sprinkle bacon pieces or chopped green onions atop, if using.
05 -
Gently fold the cooked potatoes to ensure the sauce and cheese are evenly distributed. Serve hot, either as a side dish or a comforting standalone meal.