Made my mother-in-law cry happy tears with this one. She said it reminded her of Sunday dinners at her grandmother's house decades ago.

This slow cooker 4-ingredient creamy parmesan potato dish is the kind of comfort that makes people quiet at the table for a moment, then smile. The first time I brought it to my daughter-in-law’s house, my own mother-in-law got misty-eyed and said it tasted like the potatoes her grandmother used to bake for Sunday dinners back in the 1940s—simple, rich, and full of love. Thick-sliced russets melt into a creamy white sauce, with a blanket of golden parmesan on top. It’s the kind of recipe you can put together in minutes, then let it hum away while you go about your day, filling the house with that old-fashioned, cozy aroma that makes everyone feel at home.

Serve these creamy parmesan potatoes on a warm white plate with a good crack of black pepper over the top, just like a Sunday supper side dish. They’re lovely next to roast chicken, pot roast, or a baked ham, and they soak up gravy like a dream. Add a simple green vegetable—steamed green beans, peas, or a crisp salad with a tangy vinaigrette—to balance the richness. Leftovers reheat well and make a comforting base under leftover meat or a fried egg for a hearty farmhouse-style breakfast.

Servings: 6

3 pounds russet potatoes, peeled and sliced into 1/3-inch thick rounds

Lightly grease the inside of a 5- to 6-quart slow cooker with butter or a little oil so the potatoes don’t stick.

Peel the russet potatoes and slice them into thick 1/3-inch rounds. Try to keep the slices even so they cook at the same rate.

In a bowl or large measuring cup, stir the heavy cream together with the kosher salt until the salt is mostly dissolved.

Spread a single, even layer of potato slices over the bottom of the slow cooker, overlapping them slightly like shingles.

Sprinkle a small handful of grated parmesan over the potato layer (about 1/4 cup), then spoon a little of the salted cream over the top—just enough to lightly coat the potatoes.

Repeat layering: potatoes, a sprinkle of parmesan, then a splash of cream, until all the potatoes are used. Pour any remaining cream evenly over the top so it seeps down between the slices.

Reserve about 1/2 cup of the parmesan cheese for finishing. Sprinkle the remaining (not reserved) parmesan over the top layer of potatoes.

Cover the slow cooker with the lid and cook on LOW for 5 to 6 hours, or until the potatoes are very tender when pierced with a fork and the cream has thickened into a rich, creamy sauce.

Once the potatoes are tender, sprinkle the reserved 1/2 cup parmesan evenly over the top. Cover again and cook on HIGH for 10 to 15 minutes, just until the cheese on top is melted and starting to turn a soft golden color.

Turn off the slow cooker and let the potatoes rest, covered, for 10 to 15 minutes. This helps the sauce thicken slightly so it clings to the potato slices.

Carefully lift out spoonfuls of potatoes, keeping the thick slices as intact as you can, and arrange them on a white plate so the creamy sauce and golden parmesan are visible on top.

Finish with a generous crack of fresh black pepper over the potatoes just before serving, and bring them to the table while they’re still hot and bubbly.

For a slightly lighter version, you can use half-and-half in place of the heavy cream, though the sauce will be a bit thinner and less rich—more like a traditional Midwestern scalloped potato than a very creamy gratin. If you like a touch of onion flavor like many old Sunday dinners had, rub a cut clove of garlic or a slice of onion around the inside of the slow cooker before greasing it, then discard; this gives a gentle aroma without adding another true ingredient. You can also add a pinch of dried thyme or paprika to the cream if your family enjoys a hint of herbs or color, though the original four-ingredient version is closest to those simple, farmhouse suppers. For extra browning on top, transfer the cooked potatoes to a shallow baking dish, sprinkle with the reserved parmesan, and broil for 2 to 4 minutes, watching closely so the cheese turns deep golden but does not burn. Food safety tips: Keep the potatoes submerged in cream as directed—this helps them cook evenly and reduces the chance of exposed pieces drying out or cooking unevenly. Always cook on LOW for the full time until the potatoes are fork-tender; undercooked potatoes can be hard to digest. Do not leave the slow cooker on the WARM setting for more than 2 hours after cooking; cool leftovers promptly and refrigerate within 2 hours. Reheat leftovers to steaming hot (165°F/74°C) before serving, and use within 3 to 4 days. If you plan to prep ahead, slice the potatoes just before assembling the dish; raw potatoes will brown if left exposed to air, so if you must hold them, keep them covered in cold water and drain well before layering.