Lupin Free Buttermilk Mashed Potatoes
Creamy, buttery mashed potatoes are one of those dishes that feel like a hug on a plate, and this version delivers that comfort in the most satisfying way. Yukon Gold potatoes are the real star here — their naturally waxy, golden flesh breaks down into something impossibly silky without turning gluey. Warming the butter and buttermilk together before folding them in is a small step that makes a big difference, keeping the mash loose, luscious, and perfectly smooth. The tang from the buttermilk adds just enough brightness to balance all that richness, and the white pepper gives a gentle, clean heat that doesn't overpower. Lupin flour and lupin-based thickeners sometimes sneak into packaged potato sides and seasoning blends, so making this entirely from scratch means you know exactly what's in the bowl. A finish of fresh chives on top adds a pop of color and a mild oniony note that pulls the whole dish together. This is the kind of side that steals the show at any table.
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Learn more →Ingredients
6 servings
- 3 lb yukon gold potatoes, peeled and cut into 2-inch chunks
- 1 tbsp kosher salt, plus more to taste
- 6 tbsp unsalted butter, cut into pieces
- 1 cup buttermilk
- ½ tsp white pepper
For serving
- 2 tbsp fresh chives, thinly sliced (optional)
Instructions
- 1
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.
- 2
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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