It has been hailed as raising a middle finger to terrorism.
Auckland advertising agency Y&R developed the advert, but a spokeswoman told the Herald it did not want to comment on the new found fame the ad had received.
However, Mashable said the agency responded to its enquiries by saying: "We are proud to be part of any efforts to end violence and bring about peace."
Fries have joined figures such as Tintin as symbols of solidarity with Belgium in the wake of the attacks, with many using the slogan #JeSuisBruxelles or #IAmBrussels.
The origin of the snack - commonly known as French fries - has long been disputed, and both France and Belgium claim to have invented them.