Chocolate is a well known aphrodisiac. Food play overlaps with other fetishes, including wet and messy fetishism, feederism, and Nyotaimori. It is differentiated from Vorarephilia, aka "Vore," in that food play fetishizes food while vore fetishizes the act of eating a living creature, or being eaten alive. ((You asked))
A custard-covered-lover is true Sitophelia.