Slow Cooker Mashed Potatoes

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5 from 2 votes

Simplify dinner prep with these Slow Cooker Mashed Potatoes! This Crock pot mashed potatoes recipe is the EASIEST way to make this classic side dish.

Overhead view of a crock of slow cooker mashed potatoes

Long live carbs!

In between all the stuffing, sweet potatoes, rolls, pie, and potatoes coming my way over the next few months, it’s a great time for a carb lover to be alive!

Especially for big holidays and special occasions, like Thanksgiving dinner and Christmas dinner, I’m always looking for ways to free up stove space and oven space, so “outsourcing” some of my side dishes to countertop appliances like a slow cooker or instant pot can be a great way to free up space and make more recipes hands-off.

Much like our instant pot mashed potatoes, making mashed potatoes in a slow cooker is SO easy and convenient–no waiting for a pot to boil! I love that I can start them several hours in advance, and they basically take care of themselves! (Perfect for busy weeknights or hectic holiday prep!)

Best of all, they start with simple ingredients. Here’s what you need to make our easy slow cooker mashed potatoes recipe…

Front view of a plate of slow cooker mashed potatoes with gravy, broccoli, turkey, and cranberry sauce

Start With Simple Ingredients

These crock pot mashed potatoes call for the same ingredients you’ll use for classic mashed potatoes. Let’s take a look:

  • Potatoes. We love using Yukon gold potatoes (yellow potatoes), or red-skinned potatoes for mashed potatoes. Both work especially well in this creamy slow cooker mashed potato recipe.
  • Water Or Broth. To avoid the milk curdling or separating during cooking, I use water to cook the potatoes in the slow cooker, then add the milk at the end. For more flavor, you can also use chicken broth or vegetable broth. (Just know that the flavor can come through, so only use a broth you enjoy!)
  • Butter. A little (or a lot!) of butter adds richness and gives the potatoes so much flavor. Unsalted butter or salted butter works fine–whichever you have and enjoy!
  • Milk Or Cream. Once the potatoes are cooked, you’ll mash them with some milk or cream. The higher the percentage of fat, the creamier your potatoes will be, but any kind of milk will work, so heavy cream, half and half, or whole milk will give you creamier potatoes than skim milk. (Even dairy-free milk, like cashew milk or almond milk–just don’t use vanilla!)
  • Salt & Black Pepper. Friends don’t let friends under-season their mashed potatoes! Make sure to use plenty of both, to taste.
  • A Slow Cooker! Last, but not least, you’ll need a slow-cooker! This one’s inexpensive, cute, and works like a charm! If you’ve got a touch more room in the budget, this slow cooker is more programmable and works for all kinds of dishes.
overhead view of a bowl of slow cooker mashed potatoes topped with butter and chives

Mix It Up! Try These Mashed Potato Toppings & Mix-Ins

We love these crockpot mashed potatoes as-is, but when you want a change of pace, you can try adding…

  • Sour Cream Or Greek Yogurt. Add a bit of tang and lightness to your mash with a dollop of sour cream or plain Greek yogurt mixed in with the butter and milk. (Some folks even use an ounce or two of cream cheese for a similar effect!)
  • Cheese. Grate in a bit of Parmesan cheese as you’re mashing the potatoes, or top them with a bit of shredded cheddar cheese at the end. (Pair the cheddar with some cooked, crisped bacon for loaded mashed potatoes!)
  • Garlic. Add another layer of flavor by adding garlic cloves! Add a minced garlic clove (or two or three) or a sprinkle of garlic powder to your potatoes as they cook, or stir in some roasted garlic at the end, when you’re mashing the potatoes.
  • Fresh Herbs. Snipped or chopped chives on top, a little rosemary mixed in at the end, or some parsley for decoration!

How To Make Slow Cooker Mashed Potatoes, Step By Step

As always, you can find the full recipe, with ingredient amounts, detailed instructions, and tips in the recipe card below!

  1. Peel & Prep Your Potatoes. Start by washing and peeling the potatoes, as desired. (If you prefer to leave some or all of the peels on, that’s fine!) Cut potatoes into chunks. (1-inch chunks or 2-inch chunks work best)
  2. Get Ready To Cook. Add the potato chunks to the slow cooker along with the water or broth, 4 Tablespoons of butter, and salt.
  3. Cook The Potatoes on HIGH for 3-4 hours or on LOW for 6-7 hours, or until tender. A fork should easily pierce through the potatoes. (This is called “fork tender”)
  4. Add The Other Goodies. Pour in the milk and add the remaining butter. (No need to drain the potatoes.)
  5. Mash The Potatoes. Mash potatoes with a potato masher, potato ricer, or a hand mixer, adding more milk or butter as desired until you reach your desired consistency. (If using a hand mixer, try not to over-mix the potatoes or they can get gluey and overly starchy)
  6. Taste & Season the potatoes, adding salt or pepper to taste, and adding more milk or butter as needed for your desired consistency. Garnish with a few pats of butter or a little salt and pepper, as desired, and serve warm!
  7. Keep Them Warm. Slow cooker mashed potatoes can be kept covered on the WARM setting for up to 2 hours. Store leftover mashed potatoes in an airtight container in the fridge 2-3 days. 

*Cooking the potatoes on HIGH for 3-4 hours will give you a prettier color than cooking on LOW for 6-7 hours.

Close up view of fluffy crock pot mashed potatoes

FAQ + Tips And Tricks For The Best Slow Cooker Mashed Potatoes

How Many Potatoes Should I Make Per Person?

A general guidelines is to plan 1/2 pound (8 oz.) of potatoes per person. This crock pot mashed potatoes recipe calls for 5 pounds of potatoes, so it should serve 10 or more guests. This estimate usually holds up for me!

What Potatoes Work Best For Slow Cooker Mashed Potatoes?

The kind of potatoes you use does make a difference! Yukon gold potatoes (yellow potatoes) and red potatoes work best in the slow cooker. Russet potatoes *can* be used, but they tend to oxidize (turn brown) more quickly, so you may notice some brown spots on your potatoes after cooking. This is harmless, but can impact the color.

Do You Have To Peel Potatoes For Mashed Potatoes?

Nope! It’s totally up to your personal preference. If you like a more rustic texture, leave some or all of the peels on your potatoes. If you want super smooth mashed potatoes, then you’ll want to use peeled potatoes. Also, keep in mind the type of potatoes you’re using. Russet potato skins can be thick and tough and are best peeled, while Yukon golds and red potatoes have thinner, more tender skin that easily mashes.

A Trick For Easy Clean Up

My mom loves these slow cooker liners for easy clean-up. If you’re cooking for Thanksgiving or another food-heavy holiday, it can be a great way to help you cut down on dishes! You can spray your slow cooker with cooking spray or spray oil before adding the potatoes and other ingredients.

What Can I Use Instead Of Butter For Mashed Potatoes?

If you don’t eat butter, you can use 1/4 cup olive oil, then use additional milk (dairy-free milk, if needed) or broth for the rest of the liquid. We’ve done this in our Instant Pot Mashed Potatoes loads of times. Vegan butter (like Earth Balance) also works! If dairy’s not a problem, you can also use sour cream, cream cheese, or plain Greek yogurt in place of all or part of the butter.

What’s The Best Way To Re-Heat Mashed Potatoes?

I always recommend adding some extra milk or butter, as it feels like mashed potatoes have a tendency to dry out. Additionally, whipping them or at least fluffing them with fork after heating can help revive their light texture.

Overhead view of a plate of slow cooker mashed potatoes, broccoli, turkey, and cranberry sauce

More Easy Side Dishes To Try

Did You Make This Recipe?

Tell me all about it! Leave a star rating below when you try our Slow Cooker Mashed Potatoes recipe. I can’t wait to hear how it goes!

Overhead view of a plate of slow cooker mashed potatoes, broccoli, turkey, and cranberry sauce

Slow Cooker Mashed Potatoes

5 from 2 votes
Emily Dixon, One Lovely Life
This Crock pot mashed potatoes recipes is the EASIEST way to make this perfect side dish!
Prep Time: 25 minutes
Cook Time: 4 hours
Print Pin Rate
Servings: 10 servings
Calories: 240kcal

Ingredients

For The Mashed Potatoes:

  • 5 lbs. potatoes Yukon gold or red potatoes work best, peeled if desired
  • 1 1/2 cups water chicken broth or vegetable broth
  • 4 Tablespoons butter cut into small pieces*
  • 1 teaspoon kosher salt
  • 1-1 1/2 cups milk or cream unsweetened dairy-free milk works fine!
  • 2-4 Tablespoons butter*
  • 1/2 teaspoon black pepper

Optional Toppings Or Mix-Ins:

  • 2-3 cloves garlic snipped chives, Parmesan or cheddar cheese, bacon bits/crumbled cooked bacon

Instructions

  • Peel & Prep Your Potatoes. Start by washing and peeling the potatoes, as desired. (If you prefer to leave some or all of the peels on, that’s fine!) Cut the potatoes into chunks. (1-inch chunks or 2-inch chunks work best)
  • Get Ready To Cook. Add the potato chunks to the slow cooker along with the water or broth, 4 Tablespoons of butter, and salt.
  • Cook The Potatoes on HIGH for 3-4 hours or on LOW for 6-7 hours, or until tender. A fork should easily pierce through the potatoes. (This is called “fork-tender”)
  • Add The Other Goodies. Pour in the milk and add the remaining butter. (No need to drain the potatoes.)
  • Mash The Potatoes. Mash potatoes with a potato masher, potato ricer, or a hand mixer, adding more milk or butter as desired until you reach your desired consistency. (If using a hand mixer, try not to over-mix the potatoes or they can get gluey and overly starchy)
  • Taste & Season the potatoes, adding salt or pepper to taste, and stir in more milk or butter as needed for your desired consistency. Garnish, as desired, and serve warm!
  • Keep Them Warm. Slow cooker mashed potatoes can be kept covered on the WARM setting for up to 2 hours. Reheat leftover mashed potatoes with an extra splash of milk to revive them.

Notes

If you don’t eat butter, you can use 1/4 cup olive oil, then use additional milk (dairy-free milk, if needed) or broth for the rest of the liquid. We’ve done this in our Instant Pot Mashed Potatoes loads of times. Vegan butter (like Earth Balance) also works! If dairy’s not a problem, you can also use sour cream, cream cheese, or plain Greek yogurt in place of all or part of the butter.

Video

Course: Side Dish
Cuisine: American
Keyword: crock pot mashed potatoes, crockpot mashed potatoes, slow cooker mashed potatoes, slow cooker mashed potatoes recipe

Nutrition

Serving: 1cup mashed potatoes | Calories: 240kcal | Carbohydrates: 40.4g | Protein: 5.1g | Fat: 7.1g | Saturated Fat: 4.4g | Cholesterol: 18.6mg | Sodium: 145.1mg | Fiber: 4.8g | Sugar: 2.5g

Nutrition facts are an estimate only and will vary based on brands and amounts used.

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Recipe Rating




3 Comments

  1. 5 stars
    Emily, this recipe made my Thanksgiving meal preparations so much easier! I’m not sure why I had never thought of doing this before, but I know I’ll never go back to the boiling and mashing at the last minute ever again! I used a mix of Yukon Gold and Russett potatoes, slow cooked for high 4 hours, mashed with extra ingredients and then kept them warm on low til (and during) serving. Thank you!