Sweet Potato

Buy sweet potatoes that are firm and heavy for their size with no soft spots, wrinkles, or sprouts. Medium ones around 5 oz cook evenly, giant ones go stringy in the middle before the ends finish. Anything labeled a yam at a US grocery store is almost certainly a sweet potato (true yams are a different plant entirely). Store them in a cool, dark pantry for 3–4 weeks, never the fridge, where the cold hardens the center and dulls the flavor. The skin is thin and worth eating, so scrub instead of peel when cubing. I reach for garnets every time, they're the creamiest of the orange varieties.

Sweet potatoes get sweeter the harder you cook them. Heat converts their starch to sugar, which is why a whole sweet potato baked at 400°F for about 50 minutes tastes like candy while a rushed one tastes like raw starch. Skip the foil when baking whole: it traps steam, softens the skin, and blocks the caramelization that makes the whole thing worth it. Poke a few holes, put it right on the rack, and pull it when a knife slides through with zero resistance. Whether you're baking whole, roasting cubes at 425°F, or air frying, the times below cover every method. A baked sweet potato with butter and flaky salt is my desert island side dish.