In France, April 1st is known as “Poisson D’Avril” which translates to “April Fish.” Much like April Fool’s Day, pranks are rampant, and on Poisson D’Avril the goal is to tape a paper fish to the back of an unsuspecting person. It also means that there is a proliferation of all things fish. Chocolate fish are one particularly popular option, and can be found in stores throughout France. Making your own chocolate fish at home is super easy – AllRecipes has a detailed guide. Aside from the chocolate, all you need is a fish-shaped candy mold (there are tons of options). The Spruce has a recipe for molded chocolates filled with chocolate ganache for even more fun.
Chocolate Fish by Caliparisien