Good things come in small packages! Giant amphiphiles, consisting of a polymeric hydrophobic tail and a horseradish peroxidase head, were simultaneously synthesized and self‐assembled into vesicles. During the self‐assembly process, glucose oxidase was encapsulated to create enzymatic cascade nanoreactors (see picture; ABTS= 2,2′‐azido‐bis(3‐ethylbenzthiazoline‐6‐sulfonic acid)).