
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 — parboiling the chunks until their edges go ragged, then shaking them dry in the pot to build that signature shaggy surface before they ever hit the oven. That rough texture is what grabs the hot fat and crisps up into a shatteringly golden crust while the inside stays fluffy and tender. Duck fat, goose fat, or beef tallow each bring a rich, savory depth that olive oil can't quite match, though all four options work beautifully. Optional crushed garlic cloves and fresh rosemary or thyme nestle alongside the potatoes as they roast, perfuming the whole tray without overpowering the clean, simple flavors. For anyone navigating a sensitivity to ginger, this recipe is naturally free of it — no spice blends, no marinades, no hidden seasonings to second-guess, just honest pantry staples doing exactly what they're supposed to do. Finish with a generous pinch of flaky sea salt straight out of the oven and get them to the table fast, because they won't last long.
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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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