
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 rough up the surface before they hit a screaming-hot pan of fat. That shaggy, textured exterior is what turns into a deeply golden, shatteringly crisp crust in the oven. Duck fat, goose fat, or beef tallow each bring a rich, savory depth that olive oil can't quite match, though olive oil works beautifully if that's what you have on hand. Crushed garlic cloves and fresh rosemary or thyme nestled alongside the potatoes perfume the whole tray as they roast, making your kitchen smell absolutely incredible. Since everything here is straightforward pantry and produce, there's nothing to second-guess — no hidden stimulants, no complicated swaps, just honest ingredients doing honest work. Pull them from the oven, hit them with flaky sea salt while they're still sizzling, and get them to the table fast.
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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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