frogspawn
n.— «When Alfred Bird created his famous powder in 1846 (because his wife was allergic to the eggs found in real custard), he started a tidal wave of packet custard which, for some, is a childhood trauma on a par with tapioca frogspawn.» —“In praise of tasty tarts” by Hattie Ellis Times (London, England) Feb. 26, 1994. (source: Double-Tongued Dictionary)