Pepper-jack cheese, or simply pepper-jack, is where a Suethor gives a canon character his/her own tastes. The name comes from a Suethor who gave Hermione Granger a taste for pepper-jack cheese, which isn't even common in England. The logic behind this is described thus by TVTropes' Fanfic Chop Suey page, which describes a similar concept: "1. I like Fandom A. 2. I also like Fandom B, Song C, Subculture D, Sexual Practice E, Religion F, Political Stance G, and/or Literary/Artistic Style H. 3. Therefore, Fandom A will go together well with any one or more of Items B-H."