Ovaltine
/ˈəʊvltiːn/noun
A trademark for: a mixture (especially a powder) consisting principally of malt extract, with dried milk, egg, and cocoa, intended to be mixed with hot milk to make a drink.
Origin
Early 20th century; earliest use found in The Trade Marks Journal. Shortened from Ovomaltine, the name of the product in Switzerland, where the manufacturer is based from French ovo- + maltine, with allusion to the inclusion of dried egg in the mixture.