Crockpot Mashed Potatoes

4.99 from 118 votes
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Crockpot Mashed Potatoes free up your stovetop and oven when you need them most -- during the holidays! Yukon Gold potatoes slow cook in broth with garlic, then get mashed with sour cream and optional Parmesan for a creamy, buttery side dish. And they stay warm in the slow cooker until you're ready to serve. It's one of my go-to make-ahead holiday sides.

Crockpot mashed potatoes in serving bowl topped with parmesan, butter, and thyme.

Why These Crockpot Mashed Potatoes Work

Headshot of Kristen Chidsey in A Mind Full Mom Apron.

When it comes to pulling off Thanksgiving dinner, I let the crockpot handle the mashed potatoes so I can handle everything else, and it helps keep them warm for your holiday meal.

  • Classic or dressed up. The garlic and Parmesan are optional, and there's a dairy-free version. I'll walk you through the swaps below.
  • No boiling, no draining. The cubed potatoes go into the crockpot raw and cook right in the broth. They soak up all that savory flavor instead of sending it down the drain.
  • Your stovetop stays free. That leaves every burner and the oven for the rest of the menu.
  • Holds warm for up to 4 hours. Mash them, switch the crockpot to warm, and they'll wait until everything else hits the table.

5-Star Reader Review

These are perfect! Made them this weekend and paired with some fried chicken. Everybody loved them. Will add these to my list for Thanksgiving side dishes! - Michelle ⭐⭐⭐⭐

Ingredients & Substitutions

Yukon gold potatoes, sour cream, milk, broth, parmesan, garlic, salt and butter on counter for mashed potatoes.
  • Yukon Gold Potatoes: Yukon Golds are naturally buttery and less starchy than russet potatoes, so they mash into a smooth, dreamy texture without getting gluey. They're the same potato I use for my stovetop Yukon Gold mashed potatoes.
  • Broth or Stock: Use low-sodium vegetable broth or chicken stock instead of water. Because this is a no-drain recipe, the potatoes absorb every bit of the liquid, so broth adds flavor that water can't.
  • Garlic: Optional. The peeled cloves cook with the potatoes and mash right in.
  • Milk or Cream: Use heavy cream for rich, decadent mashed potatoes, half and half for slightly rich potatoes, or whole milk for a simple, everyday mash. Reduced-fat and skim milk work, but the results won't be as luxurious.
  • Sour Cream: This is the secret to incredible flavor and texture. A bit of tang balances the rich notes and makes the potatoes super creamy and fluffy.
  • Parmesan Cheese: Optional. Use freshly grated.

Dietary Swaps & Variations

  • Dairy-Free: Use extra broth in place of the cream, use non-dairy butter, and omit the Parmesan. To replace the sour cream, use non-dairy sour cream, non-dairy plain yogurt, or a little more broth to loosen the consistency.
  • Out of Sour Cream? Softened cream cheese, plain Greek yogurt, or extra milk or cream all add moisture and creaminess. But nothing quite compares to the flavor of sour cream.
  • Keep It Classic: Skip the garlic and Parmesan for classic mashed potatoes.
  • Add-Ins: Black pepper, chopped fresh rosemary, fresh thyme leaves, crumbled bacon, shredded cheddar cheese, green onions, or chives all add flavor and texture.

How to Make Mashed Potatoes in the Slow Cooker

The steps and photos are here to help, but you'll find full directions and quantities in the recipe card at the bottom of this post. If you learn better by watching, join me in my kitchen in the video below.

  1. Cut the potatoes into 1-inch cubes. Even cubes cook evenly, so you end up with smooth, lump-free mashed potatoes.
  2. Layer ingredients. Add the uncooked potatoes, broth, salt, and garlic (if using) to your slow cooker. I like to cut the butter into cubes and scatter it evenly over the potatoes.
Cubed potatoes, butter, broth, and garlic in crockpot.
  1. Slow cook. Cook on high for 3 to 4 hours or low for 6 to 7 hours, until the potatoes are fork-tender.
  2. Mash potatoes. Use a hand masher to mash the potatoes right in the slow cooker. Don't drain the cooking liquid first. The potatoes absorb it as you mash, creating a rich base.

Note from Kristen

Use a masher, not a hand mixer. It keeps the potatoes fluffy and avoids the dense, gummy texture you get from overmixing.

Crockpot filled with mashed potatoes after slow cooking.
  1. Warm the milk or cream. Microwave it in a heat-safe dish for 30 seconds, just to take the chill off. A glass measuring cup works well. Adding cold liquid to warm potatoes can make them seize up.
  2. Fold in the additions. Gently mix half of the warm cream into the mashed potatoes until absorbed. Fold in the sour cream and Parmesan, if using. Add more cream as needed to reach the texture you like.
  3. Serve or hold warm. Serve right away, or switch the crockpot to warm and enjoy within 4 hours.
Mashed potatoes in crockpot after adding milk and sour cream.

Crockpot Mashed Potatoes Video

If you learn better through step-by-step video presentation, join me in my kitchen as I make these delicious slow cooker mashed potatoes.

How to Serve Crockpot Mashed Potatoes

How to Store & Reheat Crockpot Mashed Potatoes

  • Keep Warm: Mashed potatoes hold on the warm setting for up to 4 hours, so you can finish them before guests arrive.
  • Refrigerate: Transfer leftovers to an airtight container and store in the refrigerator for up to 5 days.
  • Freeze: Once fully cooled, transfer the mashed potatoes to a freezer-safe container and freeze for up to 1 month. Defrost in the refrigerator overnight before reheating.
  • Reheat in the Microwave: Place the mashed potatoes in a heat-safe bowl with a bit of broth or milk to loosen them. Cover with a damp paper towel and microwave in 60-second intervals, stirring after each, until warmed through.
  • Reheat in the Slow Cooker: Add the potatoes and a splash of milk or broth to the slow cooker, cover, and cook on low for 2 to 3 hours, stirring often.

More Favorite Holiday Side Dishes

If these crockpot mashed potatoes are on your holiday menu, round out the table with these:

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4.99 from 118 votes

Crockpot Mashed Potatoes

Servings: 10
Prep: 10 minutes
Cook: 4 hours
Total: 4 hours 10 minutes
Crockpot mashed potatoes in serving bowl topped with parmesan, butter, and thyme.
This is an easy recipe for creamy, buttery slow cooker mashed potatoes that are seasoned with garlic and parmesan.

Video

Ingredients 

  • 5 pounds Yukon gold potatoes, peeled and diced into 1-inch cubes
  • 3 cloves peeled garlic, optional
  • 1 cup broth, chicken or vegetable broth
  • ½ teaspoon kosher salt, plus more to taste
  • 2 tablespoons unsalted butter, cubed
  • 1 cup milk or cream, *see note
  • ½ cup full-fat sour cream
  • ½ cup freshly grated Parmesan Cheese, optional

Instructions 

  • Place the raw, peeled, cubed potatoes and 3 cloves peeled garlic, if using, in the slow cooker. Add 1 cup broth and ½ teaspoon kosher salt, then stir to combine. Scatter the cubed 2 tablespoons unsalted butter evenly over the top of the potatoes.
    Cubed potatoes, butter, broth, and garlic in crockpot.
  • Cook on high for 3 to 4 hours or low for 6 to 7 hours, until the potatoes are fork-tender and mash easily. Do not drain the cooking liquid.
  • Mash the potatoes right in the slow cooker with a hand-held potato masher until no large chunks remain.
    Crockpot filled with mashed potatoes after slow cooking.
  • Microwave 1 cup milk or cream in a heat-safe glass container for 30 seconds, just to take the chill off.
  • Stir in just half of the warm milk, then add ½ cup full-fat sour cream and ½ cup freshly grated Parmesan Cheese (if using), and gently stir to incorporate into the potatoes.
  • If needed, add the rest of the warm milk until the potatoes reach the consistency you like. I typically use about ¾ cup of milk. Taste, and add more salt if needed.
    Mashed potatoes in crockpot after adding milk and sour cream.
  • Serve immediately or turn to the warm function and keep warm for up to 4 hours, or until ready to serve.

Equipment

Notes

Broth: I prefer low-sodium broth so I can control the sodium level myself. Vegetable broth, chicken broth, or chicken stock all work well here.
*Amount of Milk/Cream: I recommend heating the full amount of milk or cream and then just using what you need. If you have leftover, let it cool, refrigerate it, and use it in another dish.
Type of Milk/Cream: Use heavy cream for rich, decadent mashed potatoes, half-and-half for slightly rich potatoes, or whole milk for a simple, everyday mash. 
Flavoring: Feel free to omit Parmesan and garlic for a more classic crockpot mashed potato recipe. 
Dairy-Free Option: Use additional broth in place of the cream, use non-dairy butter, and omit the Parmesan. To replace the sour cream, use non-dairy sour cream, non-dairy plain yogurt, or add more broth to loosen the consistency.
Storage: Store cooled leftovers in an airtight container for 5 days. You can also freeze the mashed potatoes in a freezer-safe container for up to 1 month.
Reheating: I suggest reheating the potatoes with a bit of broth or milk to keep them creamy. If frozen, defrost the potatoes in the refrigerator overnight and then reheat over low heat in a slow cooker or in an oven-safe dish at 300℉ until warmed through.
Nutrition is approximate and based on using a full 1 cup of whole milk and chicken broth. 
 

Nutrition

Calories: 255kcalCarbohydrates: 42gProtein: 8gFat: 7gSaturated Fat: 4gPolyunsaturated Fat: 0.3gMonounsaturated Fat: 2gTrans Fat: 0.1gCholesterol: 19mgSodium: 322mgPotassium: 1016mgFiber: 5gSugar: 4gVitamin A: 279IUVitamin C: 45mgCalcium: 132mgIron: 2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Tried this recipe?Mention @amindfullmom or tag #amindfullmom!

About Kristen Chidsey

Kristen is a wife, busy mom of two, and creator of A Mind "Full" Mom. From breakfast to dinner to dessert, it is her passion to share tried-and-true recipes that are big on flavor, made with easy-to-find ingredients, and family-approved!

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86 Comments

  1. 5 stars
    Was a little worried when I read about the darkening of the potatoes but decided to go ahead. Not a problem! Used Yukon golds, skin on, cooked for 3 and a half hours on high, added everything until tasted perfect. Saved counter space, dishes, time and effort. Delicious! Thank you so much for this recipe, appreciate you!

  2. Hi there...instead of using a potato masher as I don't want to scratch the inside, could I use an immersion blender instead?

    1. That can make the potatoes a bit gummy and in my experience, can scratch up the inner pot more. I would recommend transferring the potatoes to a large mixing bowl to mash and then transferring back to slow cooker if you don't have a plastic masher. Enjoy!

      1. Thank you so much for the advice! I may do just that.

        I also wanted to comment that I found hints if you peel your potatoes in advance to cover with water but to add lemon juice to lower the ph levels and minimize browning which should also prevent them going black if cooking on low heat.

  3. Started these in crockpot on low setting. About an hour in I went to check them and they were turning BLACK on top. Quickly stirred them in and set the crockpot on high. Now hoping they turn out. What went wrong? Looked good when I started.

    1. Hi Mark! When exposed to oxygen, potatoes can turn gray or black, but it is completely safe to eat! It is likely due to your lid not be fitted tight on the crockpot. You can cook on high in the future to help prevent this from happening.

  4. 5 stars
    Thank you Kristen for this delicious recipe! Tried it yesterday, I left out the Parmesan cheese and I used heavy whipping cream. Very rich and creamy! Yum!

  5. Could you cut these potatoes up the night before and put water over them si they don’t turn brown and drain the water off before cooking?

  6. Hi! When doubling this, would I just double the liquid as well? Also, is there a difference if I use regular table salt instead of kosher?
    Thanks!

    1. Hi Jennifer! To double, you would want to double the liquid as well and ensure you are using a large 8-10 quart slow cooker.

  7. Hello Kristen,

    I bought regular vegetable broth because I couldn’t find low-sodium. Should I go back to another store to try to find low sodium or low sodium chicken stock instead? Looking forward to trying this recipe tomorrow, thank you!

    1. Hi Carla! There is NO need to rush back to the store! I would decrease the added kosher salt to 1/4 teaspoon and then add more to season after mashing if needed. Happy Thanksgiving!