In Eumaeus Bloom proposes that Stephen drink "a cup
of Epps's cocoa" with him at Bloom's house, and in Ithaca
the two men do just that. Epps's was a brand of water-soluble
cocoa commonly available in Dublin in 1904.
Gifford quotes from an ad in the 18 June 1904 Weekly
Freeman: "Epps's Cocoa; Grateful and Comforting;
Nutritious and Economical; . . . The best suited for all ages
and classes, The greatest invigorator for the fagged. Justly
prized by Mothers for themselves and their children, who
choose it eagerly."