Image At Unidentified Flying Chickens in Jackson Heights. Credit... Hiroko Masuike for The New York Times

For crunch, American-style fried chicken relies on a thick, well-seasoned crust, often made even thicker by soaking the chicken pieces beforehand in buttermilk. When that crust is nubbly and evenly browned, and the chicken meat is cooked through, the chicken is sublime. But too often, the flesh is still raw when the crust is cooked, or the skin never cooks all the way through, leaving a flabby layer of skin between the meat and the crust.

Korean-style fried chicken is radically different, reflecting an Asian frying technique that renders out the fat in the skin, transforming it into a thin, crackly and almost transparent crust. (Chinese cooks call this “paper fried chicken.”) The chicken is unseasoned, barely dredged in very fine flour and then dipped into a thin batter before going into the fryer. The oil temperature is a relatively low 350 degrees, and the chicken is cooked in two separate stages.

After 10 minutes, the chicken is removed from the oil, shaken vigorously in a wire strainer and allowed to cool for two minutes. This slows the cooking process, preventing the crust from getting too brown before the meat cooks through. It also shaves off all those crusty nubs and crags that American cooks strive for.

After 10 more minutes in the fryer, the chicken is smooth, compact, golden-brown, and done. Then, it’s served plain (with a small dish of salt and pepper for seasoning) or lightly painted with sauce. When it’s done correctly, the sauce is absorbed into the crust, adding savor without making it soggy.

Last week, I tasted chicken from four different Korean-style spots, and arrived at a rule of thumb that the best chicken had the least sauce (although chicken with no sauce at all was weirdly bland). The chain Cheogajip was more heavy-handed with the sauce than the others, making their chicken too sticky and sweet. But all the other chicken was at least tasty and even delicious, remaining crisp through the day and when reheated the next morning. The sauces at Unidentified Flying Chickens, which Mr. Jin makes from scratch and is still developing, had the most rounded flavors.