2½poundsYukon Gold potatoespeeled and cut into 1½-inch pieces
2tablespoonskosher saltfor boiling
4tablespoonsunsalted butter(1/2 stick), cut into pieces
½cupwhole milkwarmed
¼cupsour cream
Salt and pepperto taste
Fresh thyme and extra butteroptional for garnish
Instructions
Place the washed, peeled, and chopped potatoes in a large pot and cover with cold water by about 1 inch.
Stir in the kosher salt, then bring to a rolling boil. Reduce the heat and gently boil for about 15 minutes, or until the potatoes are fork-tender.
Drain well and return the potatoes to the pot.
Mash the potatoes with a hand masher or hand mixer until they are mostly smooth. Add in the warmed milk and pieces of butter, continuing to mash until the potatoes are creamy and fluffy. Avoid overmixing, as Yukon Gold potatoes can become gummy if worked too much.
Stir in the sour cream until fully blended. Season with salt and pepper to taste.
Optionally, garnish with fresh thyme and extra butter.
Notes
If possible, set the sour cream out about 30 minutes to 1 hour before using so it reaches room temperature and mixes more smoothly.
I really favor hand-mashing my potatoes. I appreciate just a bit of texture, and aggressive mixing with an electric mixer can lead to Yukon Gold potatoes becoming gluey. Just a personal preference. You can use a mixer if you want!