Easter is an essential religious festival in Christianity and Judaism. The custom of offering eggs already existed in Antiquity, in pagan traditions.
The consumption of eggs, like that of dairy products and meat, was prohibited by the Church in the 3rd century, during the institution of the Lenten fast. The entirely chocolate egg appeared in the following century: as cocoa became more popular, chocolatiers invented a mixture of sugar, cocoa butter and chocolate powder to create a malleable dough that could be poured into molds.