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Sour Cream Mashed Potatoes

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Rich and creamy mashed potatoes made with butter, warm milk, and tangy sour cream. A comforting side dish with a smooth, fluffy texture.

Ingredients

  • 8 tablespoons (112g) butter (salted or unsalted is fine)
  • ¾ cup (180g) sour cream
  • 3 pounds russet or Yukon Gold potatoes (peeled and chopped into roughly 1/2-inch pieces)
  • 1 tablespoon table salt (plus more as needed)
  • ½ cup milk (divided)
  • Pepper to taste

Instructions

  1. Before preparing the other ingredients, cut the butter into 1-inch pieces. Set the butter and measured sour cream in a warm spot in the kitchen to take off the chill.
  2. Place the potatoes in a large pot and add enough water to completely submerge them. Add the salt and bring to a boil. Reduce the heat to a steady simmer and cook until the potatoes are very tender and can easily be mashed against the side of the pot with a fork, about 10–15 minutes.
  3. During the last couple minutes of cooking, heat the milk in the microwave until steaming hot but not boiling.
  4. Drain the potatoes well. Add the cubed butter and mash with a potato masher. Stir in ¼ cup of the warmed milk and all of the sour cream.
  5. Taste and add more warmed milk as needed to reach your preferred consistency. Season with additional salt and pepper to taste.
  6. Cover the mashed potatoes to keep them warm until ready to serve.

Notes

  • Russet potatoes produce especially fluffy mashed potatoes, while Yukon Gold potatoes give a naturally creamy texture.
  • Add the remaining warm milk gradually so the potatoes do not become too thin.
  • Keep the finished potatoes covered until serving to help retain their heat and moisture.

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