
Creamy, buttery mashed potatoes are one of those dishes that feel like a warm hug, and this version delivers that comfort in every single bite. Yukon Gold potatoes are the secret weapon here — their naturally waxy, golden flesh breaks down into something impossibly silky without turning gluey. Warming the buttermilk and butter together before folding them in keeps the mash light and fluffy rather than dense, and that small extra step makes a genuinely noticeable difference. A touch of white pepper adds gentle heat without the sharpness of black pepper, keeping the flavor clean and classic. For anyone navigating peanut allergies, this recipe is refreshingly straightforward — every ingredient is a simple, whole-food staple with no hidden blends or processed shortcuts to second-guess. Finish with a scatter of fresh chives and you've got a side dish that looks as good as it tastes.
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Place the potato chunks in a large pot and cover with cold water by at least 1 inch. Add 1 tbsp kosher salt and bring to a boil over high heat, then reduce to a steady simmer and cook until the potatoes are completely tender and a fork slides through without resistance, 18–22 minutes.
While the potatoes cook, combine the butter and buttermilk in a small saucepan over low heat, stirring occasionally, until the butter is melted and the mixture is warm to the touch but not simmering, about 3–4 minutes. Remove from heat.
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