Sour Cream Mashed Potatoes

Prep: 15 mins

Cook: 20 mins

Difficulty: Easy

Servings: 4 Servings

Mashed potatoes are one of my top comfort foods, and I love an ultra-smooth, creamy version laden with butter and cream or milk. They’re also a blank canvas when I feel like changing it up a bit, and one of the easiest additions is some sour cream. The thick, tangy dairy is a natural in mashed potatoes, adding a subtle tangy flavor. Sour cream mashed potatoes are as easy to make as regular mashed potatoes, and you can channel some sour cream-and-onion vibes with a sprinkle of chives or scallions at the end.

Ingredients

3 pounds russet potatoes (5 to 6 large)
1 tablespoon plus 2 teaspoons kosher salt, divided, plus more as needed
1 1/3 cups whole or 2% milk
4 tablespoons (1/2 stick) unsalted butter
1/2 cup full-fat sour cream
1 tablespoon finely chopped fresh chives or scallion greens (optional)

Instructions

Peel and cut 3 pounds russet potatoes into 1 1/2-inch chunks. Place in a large saucepan or pot and add enough cold water to cover by about 1 inch. Add 1 tablespoon of the kosher salt and bring to a boil over medium-high heat. Reduce the heat to maintain a simmer and cook until the potatoes are knife tender, about 15 minutes.
Drain the potatoes in a colander. Add 1 1/3 cups whole or 2% milk, 4 tablespoons unsalted butter, and the remaining 2 teaspoons kosher salt to the now-empty pot. Place over medium-low heat, stirring occasionally, until the butter is melted.
Pass the potatoes through a ricer into the pot, or return the potatoes to the pot and mash with a potato masher until desired consistency. Gently stir to combine. Add 1/2 cup sour cream and gently stir until combined. Taste and season with more kosher salt as needed. Transfer to a serving bowl and garnish with 1 tablespoon finely chopped fresh chives or scallion greens if desired.