Slow Cooker Cheesy Mashed Potatoes Recipe

Change the way you make mashed potatoes with this easy slow cooker method. No boiling, no fuss—just five ingredients, a little time, and plenty of cheesy flavor for a crowd-pleasing side dish that pairs well with roasts, stews, and weeknight dinners.

This simple recipe yields creamy, cheesy mashed potatoes with minimal hands-on time. Use a 3-quart slow cooker, set it on low for a full day or on high for a shorter window, and finish with butter, cream, and sharp cheddar for rich flavor. The method is forgiving, easy to scale, and great for holidays or busy weeknights.

What to know about these slow cooker cheesy mashed potatoes

Serves approximately 4–6 people as a side dish.
Recommended slow cooker size: 3 quart, though a larger cooker works fine.
Cooking time: about 4 hours on high or 8 hours on low, until potatoes are tender.
Recipe is easy to halve or double depending on your needs.
Chicken broth is used to cook the potatoes for extra flavor; water will work if needed.

Best potatoes for mashed potatoes

For light, fluffy mashed potatoes choose Russet or Yukon Gold varieties. Russets give a drier, fluffier texture while Yukon Golds produce a naturally creamier result. Either works well in the slow cooker method—just cut the potatoes into even bite-sized pieces so they cook uniformly.

Tips for the best slow cooker mashed potatoes

Use heavy cream (rather than milk) for a richer texture and fuller flavor.
Hand mashing with a potato masher produces a classic, slightly textured consistency ideal for everyday mashed potatoes.
Plan on about 1/2 pound of uncooked potatoes per person for a generous side.
Smaller potato pieces cook faster in the slow cooker—aim for uniform chunks.
When draining the cooking liquid, exercise caution: the liquid and steam will be very hot. Use the slow cooker lid as a shield or pour into a heat-safe colander.

Make it a complete meal

Main dish ideas: braised beef, roasted chicken, or a hearty slow cooker beef stew complement these mashed potatoes well.
For dessert after a comforting meal, simple baked apples or a light pie are nice pairings.

Equipment needed

3-quart slow cooker (a larger size is also acceptable)
Potato masher
Cheese grater (for fresh-shredded cheddar)

Slow Cooker Cheesy Mashed Potatoes — Ingredients

2 pounds Idaho or Russet potatoes
2 cups chicken broth (or enough to cover the potatoes)
1/4 cup heavy cream
2 tablespoons butter
2 oz sharp cheddar cheese, grated
Salt and pepper to taste

Instructions

Peel the potatoes if desired, then cut them into bite-sized chunks for even cooking.
Place the potatoes in the slow cooker and pour in enough chicken broth to cover them completely.
Cook on low for 8 hours or on high for 4 hours, until the potatoes are very tender when pierced with a fork.
Carefully drain the cooking liquid—either use the slow cooker lid to shield and tilt, or transfer the potatoes to a colander. Be cautious of hot steam and liquid.
Return the potatoes to the slow cooker or a serving bowl. Add the heavy cream, butter, grated cheddar, and salt and pepper.
Mash by hand with a potato masher until you reach your desired consistency. Taste and adjust seasoning as needed.

Notes and variations

Heavy cream gives the richest, creamiest texture; you can substitute whole milk for a lighter option but the texture will be looser.
For an ultra-smooth finish, use a ricer or an electric mixer briefly, but be careful not to overwork starchy potatoes or they can become gluey.
Add-ins: chopped chives, roasted garlic, or a pinch of smoked paprika can enhance the flavor profile.
This recipe scales easily—adjust quantities to suit the number of servings you need.

Nutrition (approximate per serving)

I hope you enjoy these slow cooker cheesy mashed potatoes as much as my family does. If you try the recipe, leave a comment or rating where you found it to share your experience and any tweaks you made.