Cafe Knotted Jamsil Lotte World Mall sells doughnuts, cakes and drinks, and sits at the end of the fifth floor of Lotte World Mall. It is a cafe where you eat a custard doughnut and a lemon cream doughnut together with an americano. From the fifth-floor window seats, the east lake of Seokchon Lake is visible, and on a weekend at 9 p.m. the order line ran about 20 minutes. Doughnuts sell out late in the day, and weekends are crowded.