The original recipe for mostaccioli cookies dates back to 300 years before the birth of Jesus Christ! If that's true then the mostaccioli recipe is one of the oldest cookie recipes on record. , St. Domenico, the patron saint of the Kingdom of Naples, gave out mostaccioli cookies to the local populace in Sariano, Calabria after a terrible earthquake hit the region and the people there were in dire need. Since that time on the Feast Day of St. Domenico, August 16th, people in Sariano, Calabria celebrate by making mostaccioli cookies.