I made mashed potatoes in a slow cooker and they were the perfect easy side dish for Thanksgiving

slow cooker mashed potatoes

I made mashed potatoes in a slow cooker and thought they were creamy and delicious.
Erin McDowell/Insider
  • I'm always looking for ways to make preparing Thanksgiving dinner a little bit easier.
  • I decided to try making mashed potatoes in a slow cooker and was pleased with the result.
  • The mashed potatoes were creamy, rich, easy to make, and required minimal cleanup.

I'm always looking for new ways to utilize my slow cooker. So, with Thanksgiving coming up, I decided to try making slow-cooked mashed potatoes.

My slow cooker.
Erin McDowell/Insider

I followed a recipe for slow-cooker cheesy garlic herb mashed potatoes from Half Baked Harvest, which is one of my favorite food blogs for slow-cooker recipes. The recipe itself only needed a few ingredients, including a couple of kitchen staples like whole milk, heavy cream, and herbs.

After peeling and chopping the potatoes, I added them to the slow cooker.

The potatoes, milk, and cream in the slow cooker.
Erin McDowell/Insider

I then added in the heavy cream and whole milk. At first, I was surprised and admittedly a little concerned by how much dairy was included in the recipe. However, most of the milk and cream is removed at the end, except for about a cup which you add back into the finished mashed potatoes.

The next step was to add in the herbs.

Sage and thyme.
Erin McDowell/Insider

The recipe calls for eight sage leaves and three sprigs of thyme.

After adding in the herbs, I smashed up the garlic and added it into the slow cooker with the other ingredients.

All of the ingredients in the slow cooker.
Erin McDowell/Insider

The recipe calls for four cloves of smashed garlic, though you can adjust it to your taste. I ended up adding five cloves for a little extra flavor.

I cooked the potatoes in the slow cooker for about 4.5 hours on high.

The cooked potatoes.
Erin McDowell/Insider

The potatoes were probably done a little before then, but I wanted to make sure I gave them plenty of time to cook in order for them to be easier to mash. After making sure the potatoes were fork-tender, I drained them in a colander and reserved the liquid in a mixing bowl.

I then mashed the potatoes in the slow cooker using a perforated spatula.

I mashed the potatoes in the slow cooker.
Erin McDowell/Insider

You can also use a potato ricer or potato masher, but I found it very easy to just use the tool I happened to have in my kitchen. Within a few minutes, the potatoes were perfectly mashed and creamy.

After pouring in about a cup of the milk and cream mixture, I added in the cheese and mixed the ingredients together.

The mashed potatoes after adding the cheese.
Erin McDowell/Insider

The recipe calls for a cup of shredded Gruyere cheese. You can shred it by hand, but I chose to use pre-shredded cheese from the grocery store to make the process even easier and cleanup a breeze.

The final step was to add the butter. It should be room temperature, so remember to leave it out beforehand.

I added the butter after the potatoes were done.
Erin McDowell/Insider

I used about 3 tablespoons of salted butter and reserved a final tablespoon for serving. I also added salt and pepper to taste. After giving the potatoes a final stir, I let them continue cooking for another 10 minutes.

Finally, the potatoes were ready to eat.

The finished mashed potatoes.
Erin McDowell/Insider

I was really pleased with the consistency. They were perfectly creamy, without being grainy or turning into an unappetizing potato paste.

The mashed potatoes were some of the best I had ever eaten.

The finished mashed potatoes.
Erin McDowell/Insider

They were perfectly creamy, buttery, and the garlic really came through without being overpowering. I would definitely make these mashed potatoes again, especially considering how easy they were to make. I didn't have to stand over the stove waiting for them to boil — other than the mashing, it was basically a set-it-and-forget-it dish.

When it comes to Thanksgiving dinner, it's always nice to free up oven space whenever you can. I loved being able to make the mashed potatoes, set the slow cooker to warm, and serve them when we were ready for dinner. I imagine this would be even better after a long day of cooking in the kitchen — or simply after a long day at work.

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