These mashed potatoes are made in the SLOW COOKER guys! No peeling, no boiling, no draining! Just chop, wait, mash, EAT! They can be made ahead and kept warm too. The buttermilk adds tons of flavor!

Slow Cooker Buttermilk Mashed Potatoes from The Food Charlatan

The other day I was watching a cooking segment on a news channel. There was a guy making some mashed potatoes. He’s whipping away when the host asks about over-beating. “It makes the potatoes gummy, right?”

Slow Cooker Buttermilk Mashed Potatoes from The Food Charlatan

“Yeah, well over-beating actually releases gluten from the potatoes. So you want to make sure not to do that.” That’s right, folks. The longer you beat your potatoes the more glutinous they will be!

I think the guy was confusing potatoes with bread dough, which you have to knead in order to form gluten. (You guys have seen Jimmy Kimmel’s video where he asks people at a gym what gluten is, right? WATCH IT, so funny.)

Slow Cooker Buttermilk Mashed Potatoes from The Food Charlatan

Slow Cooker Buttermilk Mashed Potatoes from The Food Charlatan

Slow Cooker Buttermilk Mashed Potatoes from The Food Charlatan
Po-ta-toes. Boil em, mash em, stick em in a stew!

Last night Eric and I went to see Lake Street Dive, an awesome band with a glorified bar sound and an amazing bassist. It was super fun! They put on a great show. Now I’m just wishing I had a pair of her pants-skirt. Are they pants? Is it a skirt? Who cares? She looks awesome.

Slow Cooker Buttermilk Mashed Potatoes from The Food Charlatan

These Slow Cooker Mashed Potatoes are 100% pure deliciousness. And they are SO easy. All you have to do is chop up the potatoes, throw them in a crock pot, and wait. I added some buttermilk for a little tang, which I really love. You can peel the potatoes if you want, I was too lazy. I added the same spices I always put in (we were majorly into mashed potatoes growing up) and they turned out awesome.  I’m totally making these on Thanksgiving so that I don’t have to do the potatoes last minute!


Slow Cooker Buttermilk Mashed Potatoes

5 from 1 vote
Prep: 10 minutes
Cook: 3 hours
Total: 3 hours 10 minutes
Servings: 10 Servings
These mashed potatoes are made in the SLOW COOKER guys! No peeling, no boiling, no draining! Just chop, wait, mash, EAT! They can be made ahead and kept warm too. The buttermilk adds tons of flavor!


  • 5 pounds red potatoes
  • 6 tablespoons butter
  • 2 teaspoons salt
  • 1/4 teaspoon pepper
  • 1 teaspoon seasoning salt
  • 1 & 1/2 teaspoons parsley
  • 4 teaspoons minced garlic, I used the kind in the jar
  • 1/4 teaspoon onion powder
  • 1/8 teaspoon cayenne pepper
  • 1/8 teaspoon lemon pepper, optional
  • 1 & 1/2 cups buttermilk
  • 1/3 cup sour cream
  • 1/2 cup buttermilk, plus more to taste
  • parsley, fresh, chopped
  • salt and pepper , to taste
  • 2 tablespoons butter


  • Wash and scrub potatoes. Cut into 1-2 inch chunks. (The smaller you chop the potatoes the faster they will cook.)
  • Rub the sides and bottom of a large crock pot with the end of the 6 tablespoons of butter, then chop the rest into chunks.
  • Add the potatoes and butter to the crock pot.
  • Sprinkle with salt, pepper, seasoning salt, parsley, garlic, onion, cayenne, and lemon pepper.
  • Pour 1 and 1/2 cups buttermilk over the potatoes and stir.
  • Cook on high for 3 hours, or on low for 7 hours. Check to see if the potatoes are tender, a fork should slide through them easily. Cook for another half hour at a time until the potatoes are done. Keep an eye on them. If they start to get brown, they are overcooking. Be aware that if you have an old crock pot, the cook times might be longer.
  • When the potatoes are done, mash them in the pot. You can use a regular masher for this, or beat them with an electric mixer. Just be careful not to beat too long or you will release the gluten. :)
  • It might seem liquid-y at first, but eventually the potatoes will absorb it.
  • Add the sour cream and more buttermilk to taste.
  • Finish by adding 2 tablespoons butter and salt and pepper to taste.
  • If you mash your potatoes early, you can keep them in the crock pot on the warm setting for a couple hours. Put some paper towels underneath the lid to keep the potatoes from getting the condensation in them.


You can use any kind of potato you like. Make sure you peel if you are using baking potatoes. Yukon gold would be another great option that you don't have to peel.
Source: This recipe is a Food Charlatan original, but the cooking method is from my girl Tiffany over at Creme de la Crumb.


Serving: 1cup | Calories: 286kcal | Carbohydrates: 39g | Protein: 6g | Fat: 13g | Saturated Fat: 8g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 1g | Cholesterol: 33mg | Sodium: 875mg | Potassium: 1117mg | Fiber: 4g | Sugar: 6g | Vitamin A: 435IU | Vitamin C: 20mg | Calcium: 92mg | Iron: 2mg
Course: Side Dish
Cuisine: American
Calories: 286
Keyword: Buttermilk, Crockpot, mashed potatoes, slow cooker
Did you make this? I'd love to see it!Mention @thefoodcharlatan or tag #thefoodcharlatan!

Here are some more potato recipes you will LOVE!

Brown Butter Mashed Potatoes << guys, these are crazy good. You have to try them. No gravy needed when there’s brown butter in the house.

Browned Butter Mashed Potatoes from The Food Charlatan


My favorite classic recipe for Mashed Potatoes:

Mashed Potatoes (From Heaven) from

Oven Roasted Potatoes with Bacon and Parmesan:

Oven Roasted Potatoes with Bacon and Parmesan from


Gruyere Crisped Potatoes Au Gratin << The only real thing that can compete with mashed potatoes: crispy creamy cheesy ones.

Gruyère-Crisped Potatoes Au Gratin


Other recipes for slow cooker mashed potatoes:

Slow Cooker Mashed Potatoes from Creme de la Crumb << This post on Tiffany’s blog was the first time I had seen potatoes done in the slow cooker, definitely check it out! Lady’s a genius.
Secret Ingredient Slow Cooker Mashed Potatoes from Carlsbad Cravings
Slow Cooker Mashed Potatoes from Gimme Some Oven

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  1. Can I make these a day ahead? If I do, how would I reheat them? Can I just put them back into the slow cooker for a couple hours to reheat?
    I’m going to make these for Christmas to go with our beef tenderloin.

  2. My girlfriend, our husbands and I have what we call “guinea” dinners. We try something new, and use each other as guinea pigs – and we vote as to whether we would make it again. This was an amazing hit! All four of us gave it 5 stars. I did find ,however, that I had to cook my potatoes for about 5 hours on high, (and I think I cut the potatoes into 1 inch chunks) and I didn’t need to add anymore buttermilk while mashing. Otherwise followed the recipe to a tee!

    But here was one of the most amazing tips EVER! You said to put a paper towel under the cover if you are setting it on warm. ABSOLUTELY BRILLIANT!

    I have loved every recipe of yours that I have tried. Thank you!!

  3. These were fantastic! So great to get them going and not have to be boing and worrying about getting them to the right point when everything else is ready. Will make these again. Very good flavor too. They were a hit

  4. Like how people think eggs are dairy. *bangs head on desk* I host 20 for Thanksgiving, so I need to free up my oven and stove as much as possible. Absolutely love this. And since you said they’re great, then it must be true!

  5. I have to admit I just made slow cooker mashed potatoes last week for the first time ever and I love them!!! I love the different seasonings you used in yours!!

  6. Mashed potatoes in the slow cooker? Made with buttermilk? I think I just met my new plan for Thanksgiving potatoes. :)

    1. Thank you Danae! I can never get enough mashed potatoes :) I HAVE to go check out those PBJ stuffed pancakes!!! omg!

  7. I’m hosting Thanksgiving this year, and I was just looking for some slow cooker recipes that I could just set and forget. I’m making these and your sugared cranberries for our meal!!

    1. set it and forget it is the way to go! I’m so glad you are making the cranberries too, you will love them Lisa!!

  8. This is my favorite way to make mashed potatoes for Thanksgiving Hands off! Looks delicious.

    1. This week was my first time trying it out Karen! It took me a couple tries to get it right, but I’m so happy with the results. Thanksgiving just got way easier!

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