Appa Gom Handmade Donkatsu Sinnonhyeon Station Branch is a donkatsu restaurant in Seocho 4-dong, Seocho-gu, Seoul. It serves handmade donkatsu made mainly from sirloin and tenderloin, with attention to meat thickness and cooking. A self-service bar lets diners take as much rice and salad as they want. Expectations about portion size and what diners actually experience differ.