Place potatoes in a large pot and cover with cold, well-salted water.
Cover pot and bring to a boil over high heat. Remove lid, reduce heat to medium-high, and cook potatoes until tender.
Drain potatoes well, then return to pot. Add sour cream and butter, then mash, adding just enough milk to reach desired consistency.
Season generously to taste with salt and pepper.
Serve potatoes hot. Enjoy!
Notes
I love the flavor of Yukon Gold (yellow) potatoes here. However, you can substitute other potatoes, such as Russet, Idaho, or even red potatoes, if you prefer.The amount of milk you need will depend on how much moisture is in your potatoes, as well as how thick you like them. Start with a little ... you can always add more.Check out the info before this recipe card for helpful tips, tricks, and flavoring ideas!