These slow cooker 5-ingredient garlic parmesan mashed potatoes are the kind of creamy, cozy side dish that makes everyone at the table sigh a little and go back for seconds. They remind me of the mashed potatoes my grandma used to make for every holiday—simple, rich, and all about that velvety texture. Using the slow cooker means the potatoes get extra tender and stay warm until dinner, and with just a handful of ingredients, you still end up with mounds of fluffy, buttery potatoes that feel special enough for a holiday feast but easy enough for a busy weeknight.
Serve these creamy garlic parmesan mashed potatoes piled high on a warm plate, with a little extra melted butter and a sprinkle of parmesan on top. They’re perfect alongside roasted turkey, ham, pot roast, or meatloaf, and they soak up gravy beautifully. Add a simple green vegetable—like roasted green beans, steamed broccoli, or a crisp salad—to balance the richness. For a full holiday spread, pair them with stuffing, cranberry sauce, and warm dinner rolls so everyone can build their own perfect comfort-food plate.
Slow Cooker Garlic Parmesan Mashed PotatoesServings: 8
Ingredients
4 pounds russet or Yukon Gold potatoes, peeled and cut into 1 1/2-inch chunks
1 cup low-sodium chicken broth (or vegetable broth)
6 tablespoons unsalted butter, plus more for serving
3/4 cup heavy cream (or half-and-half)
3/4 cup finely grated Parmesan cheese, plus extra for topping
2 to 3 cloves garlic, very finely minced (optional but recommended for extra garlic flavor)
1 teaspoon kosher salt, plus more to taste
1/2 teaspoon black pepper, or to taste
Directions
Add the potato chunks to a 5- to 6-quart slow cooker. Pour in the chicken broth, then sprinkle the salt and pepper over the top. Dot the potatoes with the 6 tablespoons of butter.
Cover and cook on HIGH for 3 to 4 hours or on LOW for 6 to 7 hours, until the potatoes are very tender and easily pierced with a fork. They should be soft enough to mash with almost no effort.
Once the potatoes are tender, switch the slow cooker to the WARM setting if it has one. Add the heavy cream and the finely grated Parmesan cheese directly to the slow cooker.
Using a potato masher, mash the potatoes right in the slow cooker until mostly smooth. For extra-creamy potatoes, you can use a hand mixer on LOW speed, moving it around gently and being careful not to overmix, especially if using russets.
Taste the potatoes and adjust the seasoning with more salt and pepper if needed. If they seem too thick, stir in a splash or two of extra warm cream or broth until they reach your desired creaminess.
If you love a more pronounced garlic flavor, stir in the very finely minced garlic now while the potatoes are piping hot so it softens slightly. Mix well to distribute the garlic and parmesan evenly.
Smooth the top of the mashed potatoes in the slow cooker, then cover and keep on WARM until ready to serve, up to 2 hours, stirring occasionally to keep them silky.
To serve, spoon the hot mashed potatoes onto a white serving plate or shallow bowl in fluffy mounds. Top with a few small pats of butter so they melt into shiny pools, then sprinkle with a little extra grated Parmesan and a pinch of the minced garlic for a pretty, cozy finish. Serve steaming hot.
If you’d like the exact look from the description, use the back of a large spoon to create swirls and dips in the potatoes before adding the butter and cheese so the melted butter pools in the grooves.
Variations & Tips
For extra-garlicky potatoes, sauté the minced garlic in 1 tablespoon of butter in a small skillet until fragrant and just turning golden, then stir it into the hot potatoes before mashing for a sweeter, mellow garlic flavor. For picky eaters who shy away from garlic, you can leave the garlic out completely and simply rely on the butter and Parmesan for flavor, or add just a pinch of garlic powder instead of fresh garlic. If you need to lighten things up a bit, use half-and-half or whole milk in place of the heavy cream and reduce the butter to 4 tablespoons; the potatoes will still be creamy thanks to the slow cooking. For a vegetarian version, use vegetable broth instead of chicken broth. To make them extra indulgent for a special holiday, stir in an additional 1/4 cup Parmesan and 2 tablespoons softened cream cheese for an ultra-silky texture that really fits the “creamiest spuds” promise. If your family likes a little color, sprinkle chopped fresh parsley or chives over the top right before serving. Leftovers reheat well in the microwave or on the stovetop—just stir in a splash of milk or cream to bring back that smooth, velvety consistency.
