Crispy Deep-Fried Chicken

Crispy fried chicken belongs to the Cantonese roast-and-fry repertoire of Guangdong, Hong Kong, and Macau restaurants, where it is a staple of banquets and is widely sold under the auspicious name dang hong jaa ji gai. Unlike ordinary fried chicken dropped into a vat of oil, the bird is hung and basted with hot oil, a technique shared with Cantonese roast-meat practice. A second common method adapts the white-cut-chicken approach: the chicken is first poached just done in an aromatic chicken water of ginger, scallion, star anise, bay, and gardenia, then dried, glazed, and crisped in oil.

The skin comes off the cleaver in brittle, ruddy-red sheets that crackle and almost glassine, with a faint sweetness from the maltose; under it the chicken is white, juicy, barely set, never dried out. The classic accompaniment is a heap of puffed prawn crackers and a saucer of toasted spiced salt for dipping; a wedge of lemon brightens it. A well-fried bird shatters at the skin and runs with juice at the bone; an overdone one is dry to the breast and the skin has gone hard and dark rather than crisp.

Two things make the glass skin. The maltose-and-vinegar wash gives the surface sugars to caramelize to that deep red and an acidity that helps it dry taut; the long air-dry — hours in front of a fan — is what actually crisps it, because a damp skin only steams and stays leathery. Then comes the ladling: rather than submerging the bird, the cook hangs it and pours hot oil over the skin repeatedly, often starting at a lower oil temperature to set and cook through and finishing hotter to blister and color. Basting from outside means the skin crisps hard while the thin-walled bird does not overcook to the bone, which a full submerge tends to do.