Place your prepared potatoes in the bottom of the Instant Pot. 3 pounds russet potatoes
Cover with water. Close the lid and set it to sealing. Set the Instant Pot to manual, high, for 10 minutes.
4 cups water
At the end of the time, do a quick release to release the pressure. Once the float valve drops, open the Instant Pot carefully.
Drain the water. Make sure to completely drain them. Use a potato masher to mash the potatoes. Add in butter first so the hot potatoes can melt it. Then add in the milk. Using a hand mixer, blend the potatoes until smooth.
6 tablespoons butter, 3/4 cup milk
Add half the amount of salt, garlic powder, and black pepper listed. Taste and add more until it is the taste you prefer.
1 1/2 teaspoons kosher salt, 3/4 teaspoon garlic powder, 1/4 teaspoon black pepper