Once the potatoes are tender, gently stir them to re-coat with the sauce, then sprinkle 1 1/2 cups of the shredded cheddar cheese evenly over the surface. Cover and cook on LOW for an additional 10 to 15 minutes, just until the cheese is fully melted and forms glossy yellow swirls on top.
Turn the slow cooker to WARM for serving. Sprinkle the remaining 1/2 cup cheddar cheese over the top so you get a mix of melted and slightly more defined cheese, and if you like, garnish with a pinch of dried parsley or chives for a speckled green finish. Serve directly from the slow cooker while hot and creamy.
Variations & Tips
For a slightly lighter version, swap Greek yogurt for part or all of the sour cream; choose a full-fat style so the sauce stays thick and doesn’t separate. If you prefer a vegetarian dish, use condensed cream of mushroom or cream of celery soup instead of cream of chicken. For extra richness, stir in 2 to 3 tablespoons of softened cream cheese with the soup and sour cream before adding to the potatoes. You can also add texture by folding in 1 to 1 1/2 cups of cooked, crumbled bacon or diced ham during the last 30 minutes of cooking. If your crowd likes a little heat, use pepper jack cheese in place of some of the cheddar and add a pinch of cayenne to the ranch mixture. To keep the potatoes from overcooking at a long potluck, move the slow cooker to the WARM setting once they’re tender and give them a gentle stir every so often so the sauce stays creamy and the edges don’t scorch.
