My mother in law made this 3-ingredient dish for every gathering. It is incredibly comforting, universally loved, and disappears faster than anything else on the table.

This slow cooker 3-ingredient Amish mashed potato recipe is the kind of dish that shows up at every family gathering and never has a spoonful left at the end of the night. My mother-in-law has made a version of this for decades in her small Midwestern church community, where Amish-style cooking emphasizes comfort, thrift, and simplicity. With just potatoes, butter, and cream, the slow cooker does the work, turning humble ingredients into something incredibly comforting, universally loved, and almost guaranteed to disappear faster than anything else on the table.

Serve these mashed potatoes straight from the slow cooker on its warm setting, with a generous extra drizzle of melted butter over the top. They’re perfect alongside roast chicken, pot roast, ham, or meatloaf, and they’re especially at home on a holiday table with turkey and gravy. Add a crisp green salad or simple steamed vegetables to balance the richness, and offer crusty bread or dinner rolls to help guests swipe up every last bit of buttery potato from their plates.

Servings: 8

5 pounds russet potatoes, peeled and cut into 1 1/2-inch chunks

Lightly butter the inside of a large slow cooker (5 to 6 quarts) using about 1 tablespoon of the butter to keep the potatoes from sticking.

Peel the potatoes and cut them into roughly 1 1/2-inch chunks so they cook evenly. Place the potato chunks directly into the prepared slow cooker.

Cut 1 1/2 sticks of the butter into pieces and scatter them evenly over the potatoes in the slow cooker.

Cover the slow cooker with the lid and cook the potatoes on HIGH for 3 1/2 to 4 hours, or on LOW for 6 to 7 hours, until the potatoes are very tender and easily crushed with a spoon. Do not add water; the potatoes will steam in their own moisture and the butter.

About 15 minutes before the potatoes are done, warm the heavy cream gently in a small saucepan over low heat just until it is warm to the touch but not simmering. Warming the cream helps it absorb better and keeps the potatoes fluffy.

Once the potatoes are tender, switch the slow cooker to WARM or LOW. Use a potato masher to begin mashing the potatoes and melted butter directly in the slow cooker until most of the large pieces are broken down.

Gradually pour in the warm heavy cream while continuing to mash, adding just enough to reach your preferred texture. For a more rustic mash, stop when the potatoes are mostly smooth but still have a few small pieces; for a whipped texture, mash more vigorously or use a hand mixer on LOW directly in the slow cooker, being careful not to overwork the potatoes.

Taste the potatoes and, if you like, season lightly with salt just before serving (traditional Amish-style versions often rely on the butter and cream for flavor and keep seasonings minimal).

Melt the remaining 1/2 stick of butter and pour it over the top of the mashed potatoes, letting it pool in small golden puddles. Smooth the surface slightly with a spoon to create soft swirls that catch the melted butter, mimicking that fluffy, creamy look you’d see in a white slow cooker on a buffet table.

Cover and keep the mashed potatoes on the WARM setting for up to 2 hours, stirring gently just before serving to reincorporate some of the butter while still leaving a few visible pools on top.

For a slightly lighter version, you can swap part of the heavy cream for whole milk, though the texture will be less rich and not quite as velvety. If you prefer a bit more structure, use Yukon Gold potatoes in place of russets; they mash into a naturally buttery, slightly denser texture. To honor picky eaters and keep the dish universally loved, I recommend keeping extra seasonings on the side: offer small bowls of salt, pepper, chopped fresh chives, or grated cheese so guests can customize their own servings without changing the base recipe. If you want to make this ahead, cook and mash the potatoes as directed, then cool quickly, refrigerate in a covered container, and reheat in the slow cooker on LOW with a splash of extra cream, stirring occasionally until hot and fluffy. For food safety, do not leave the potatoes at room temperature for more than 2 hours; keep them either hot in the slow cooker on WARM (above 140°F) or chilled in the refrigerator. When reheating, make sure the potatoes reach at least 165°F before serving. Avoid using a hand mixer on high speed or overmixing, as this can make the potatoes gluey. If the potatoes ever seem too thick, gently stir in a bit more warm cream until they loosen to your liking.