These slow cooker 3-ingredient scalloped potatoes are my cozy, no-fuss version of the creamy potatoes my grandmother made for Sunday dinner every single week for 40 years. Her secret wasn’t a long list of ingredients—it was patience and letting gentle, low heat do all the work while the family relaxed and the house slowly filled with that buttery, cheesy aroma. This recipe leans into that same idea: thinly sliced potatoes, a quick shortcut cream sauce, and plenty of cheese, all layered in the slow cooker until the edges turn golden, the centers are tender, and the creamy sauce bubbles up between the slices. It’s the kind of set-it-and-forget-it comfort food that fits right into a busy schedule, but still feels like it came straight from grandma’s Sunday table.
Serve these creamy slow cooker scalloped potatoes as a cozy side with classic Sunday mains like roasted chicken, pot roast, or baked ham. They’re also great with simple weeknight options—grilled pork chops, meatloaf, or even a rotisserie chicken from the store. Add something fresh and bright on the side, like a green salad or steamed green beans, to balance the richness. If you’re hosting, keep things easy: pair the potatoes with a simple veggie tray, store-bought rolls, and a light dessert, and let the slow cooker do the heavy lifting while you enjoy your guests.
Slow Cooker 3-Ingredient Scalloped PotatoesServings: 8
Ingredients
3 pounds russet or Yukon Gold potatoes, peeled and thinly sliced (about 1/8 inch)
3 cups heavy cream (or half-and-half for a slightly lighter version)
3 cups shredded mild or medium cheddar cheese, divided
Directions
Lightly grease a 6-quart slow cooker with butter or nonstick spray to help prevent sticking and make cleanup easier.
Peel the potatoes and slice them as thinly and evenly as you can, about 1/8 inch thick. A mandoline makes this fast, but a sharp knife works fine—just aim for similar thickness so they cook evenly.
Pour 1/2 cup of the heavy cream into the bottom of the slow cooker and spread it around so the base is lightly coated.
Add a single, even layer of potato slices over the cream, slightly overlapping the slices like shingles. Sprinkle a small handful (about 1/2 cup) of shredded cheddar cheese evenly over the potatoes.
Continue layering: potatoes, then a handful of cheese, repeating until you’ve used all the potatoes. Reserve about 1 cup of cheese for the top.
Slowly pour the remaining heavy cream evenly over the layered potatoes, letting it drip down between the slices. Gently press down on the top with clean hands or a spatula to help the cream settle through the layers.
Sprinkle the reserved 1 cup of shredded cheese over the very top layer of potatoes. This will create those golden, slightly crispy, bubbly cheese spots on top.
Cover the slow cooker with the lid and cook on HIGH for 3 1/2 to 4 1/2 hours, or on LOW for 6 to 7 hours, until the potatoes are very tender when pierced with a fork and the cream is thick and bubbling around the edges.
Once the potatoes are tender, remove the lid and let the slow cooker sit on WARM for 15 to 20 minutes. This rest time helps the creamy sauce thicken and set so the slices hold together better when serving.
For extra golden, crispy edges on top (optional if your slow cooker insert is oven-safe): carefully place the insert under the oven broiler for 3 to 5 minutes, watching closely, until the cheese on top is lightly browned and bubbly. Let rest a few minutes before serving.
Serve the scalloped potatoes straight from the slow cooker, scooping down to get those tender middle slices along with the golden, cheesy edges and plenty of creamy sauce.
Variations & Tips
Use this as a flexible base while still keeping the spirit of a simple, three-ingredient Sunday side. For a slightly lighter version, swap half of the heavy cream for whole milk or half-and-half, understanding the sauce will be a bit less rich but still creamy. You can also change up the cheese: try half cheddar and half mozzarella for extra stretch, or use Gruyère or Swiss for a more old-fashioned, nutty flavor like many grandmothers used. If you want a bit more structure without adding a true fourth ingredient, you can line the bottom and lower sides of the slow cooker with a piece of parchment to help lift out the potatoes and keep the edges from getting too dark. For make-ahead prep, slice the potatoes up to 4 hours in advance and keep them submerged in cold water in the fridge, then drain and pat dry before layering; this is a great trick if you’re juggling kids’ activities and work and want to assemble quickly. To turn this into more of a main dish, you can serve the potatoes alongside a simple green salad and roasted vegetables and call it a meatless comfort meal. Leftovers reheat well in the microwave or oven; add a splash of cream if they seem dry, cover, and warm gently until hot and bubbly.
