
Few side dishes earn the kind of silence at the dinner table that a truly crispy roast potato can. The secret here is a two-step process — par-boiling the chunks until their edges go ragged, then shaking them dry before they hit a screaming-hot pan of fat — that builds an impossibly crunchy crust around a fluffy, steamy center. Duck fat, goose fat, or beef tallow each bring their own richness, but a good olive oil works beautifully too, making this adaptable to whatever you have on hand. Optional crushed garlic and fresh rosemary or thyme nestle in alongside the potatoes as they roast, perfuming the whole tray without overpowering the natural earthiness of the potato. For anyone navigating grain sensitivities, this recipe is naturally free of any bread, flour, or grain-based ingredients — just potatoes, fat, salt, and aromatics doing exactly what they're supposed to do. The result is the kind of roast potato that converts skeptics and satisfies serious fans in equal measure. Finish with a hit of flaky sea salt straight out of the oven and serve immediately while that crust is still crackling.
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Preheat the oven to 425°F (220°C). Place the fat in a large rimmed baking sheet and set it in the oven while it preheats.
Place the potato chunks in a large pot, cover with cold water by at least 1 inch, and add the kosher salt. Bring to a boil over high heat, then reduce to a vigorous simmer and cook for 10–12 minutes, until the edges are just beginning to look ragged and a knife tip meets slight resistance at the center — the potatoes should not be fully cooked through.
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