Also known as fish scale dumplings, uroko dango is a Japanese dango variety originating from Fukagawa city. The treat has been sold at Fukagawa Station since 1913, and it consists of rice, flour, and sugar. The ingredients are kneaded together, steamed, then cut into triangles with a serrated knife, making the final product visually reminiscent of fish scales, hence the alternative name of this dango.