The fipronil insecticide scare will not stop the 22-year-old tradition in Malmedy, a town in mainly French-speaking south-eastern Belgium.
Food safety officials say the fipronil traces found in eggs are too tiny to harm people. The chemical, which kills lice, is banned in the food chain.
Traces have been found in 18 countries.
The insecticide got into the food chain in the Netherlands, which is one of Europe's biggest egg producers, but contaminated eggs have travelled as far as Hong Kong.
