Instant Pot Mashed Potatoes with Garlic Herb Butter

You can make creamy and delicious Instant Pot Mashed Potatoes with Garlic Herb Butter in less than an hour. These can be made ahead of time and reheated and is the perfect side dish for your holiday celebration or a comfort food dinner.

mashed potatoes made in the instant pot with a potato masher
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Whether you are making Thanksgiving dinner, going to a pot luck, or just making a comfort food dinner, these Instant Pot Mashed Potatoes with Garlic Herb Butter should be on your list! They are REALLY easy to make, you can mash them and serve them out of the instant pot, and the herb butter takes them to another level for taste. No more boring instant potatoes!

Instant Pot mashed potatoes in a bowl

Ingredients Needed for Instant Pot Mashed Potatoes with Garlic Herb Butter

  • 5 lbs potatoes
  • water
  • salt
  • butter
  • garlic cloves
  • thyme
  • rosemary
  • sage
  • sour cream
herbs in melted butter in saucepan

How to Make Garlic Herb Mashed Potatoes in an Electric Pressure Cooker

  1. Place the potatoes, water, and salt in the Instant Pot. Make sure the potatoes are completely covered, you can add more water if needed. Place the lid on the Instant Pot and cook on STEAM for 12 minutes. When finished cooking, carefully quick-release the steam and then drain the potatoes.
  2. While the potatoes are cooking, melt the butter in a small saucepan over medium heat. Once melted, add the garlic thyme, rosemary, and sage and cook for 15 minutes over low-medium heat. Remove the butter from the heat and remove the herbs and garlic.
  3. Keep the Instant Pot on warm and mash the cooked potatoes with your masher. I like my potatoes a little chunky but you can mash as much as you would like. Add the sour cream and herb butter and stir in with a rubber spatula or large spoon. Add salt to taste.
cooked potatoes that have been mashed in instant pot

Tips on Making Mashed Potatoes in the Instant pot

  • You can make these ahead of time! Make these mashed potatoes up to 2 days ahead of time and reheat when you are ready to serve them! Perfect for Thanksgiving dinner planning.
  • Leave some of the potato skins on for extra texture in your mashed potatoes.
  • If you want chunky mashed potatoes, be careful not to over mash. If you want smooth mashed potatoes. use an immersion blender or hand mixer to get them nice and smooth and creamy.
  • Are the mashed potatoes too dry? Add some milk.

Tools for Making Instant Pot Mashed Potatoes

Here are some of my favorite tools for making these Instant Pot Mashed Potatoes. I love this potato masher because it folds up making it fit in a utensil drawer much easier.

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mashed potatoes in a bowl
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Instant Pot Mashed Potatoes with Garlic Herb Butter

Quick and Easy Mashed Potatoes made in the Instant Pot with a garlic herb butter mixed in for the best mashed potatoes ever!
Course Side Dish
Cuisine American
Keyword butter and herb mashed potatoes, Christmas side dish, easy side dish, holiday recipe, instant pot recipe, mashed potatoes, pressure cooker recipe, Thanksgiving side dish
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings 8 cups
Author EmilyFabulous

Equipment

  • Instant Pot or electric pressure cooker
  • potato masher
  • small saucpan

Ingredients

Potatoes

  • 5 lbs potatoes, washed and peeled
  • 6 cups water
  • 2 tsp salt

Butter and Herb Mix

  • 2 sticks butter
  • 4 cloves garlic, smashed
  • 2 sprigs thyme
  • 2 sprigs rosemary
  • 2 sprigs sage

Other Ingredients

  • 1 cup sour cream
  • salt to taste

Instructions

  • Place the potatoes, water, and salt in the Instant Pot. Make sure the potatoes are completely covered, you can add more water if needed. Place the lid on the instant pot and cook on STEAM for 12 minutes. When finished cooking, carefully quick-release the steam, drain the potatoes and then place the pot back into the Instant Pot. Be careful, it's hot!
    peeled potatoes in water in instant pot
  • While the potatoes are cooking, melt the butter in a small saucepan over medium heat. Once melted, add the garlic thyme, rosemary, and sage and cook for 15 minutes over low-medium heat. Remove the butter from the heat and remove the herbs and garlic.
    herbs in butter in saucepan
  • Keep the Instant Pot on warm and mash the cooked potatoes with your masher. I like my potatoes a little chunky but you can mash as much as you would like. Add the sour cream and herb butter and stir in with a rubber spatula or large spoon. Add salt to taste.
    cooked potatoes that have been mashed in instant pot

Notes

  • Always read the instruction manual that came with your Instant Pot or electric pressure cooker and follow all safety guidelines. 

Need a Good Turkey Gravy Recipe?

So, if you are making mashed potatoes, you probably need gravy, especially if you are making these for Thanksgiving or Christmas. Check out my Homemade Turkey Gravy From Drippings recipe for a super delicious gravy that is way better than the stuff from the packet.

herbs in butter and mashed potatoes in a bowl
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Did You Make This Recipe?

If you get a chance to make these Instant Pot Mashed Potatoes with Garlic Herb Butter, don’t forget to leave a comment and rating below. I love to hear from my readers and if you snap a photo you can tag me on Instagram or Facebook!

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