Simply put, deviled eggs are hard boiled, cut in half, and filled with — well, that part’s up to you! Whether you use mustard or ground mustard, prefer chives or bacon, or hold the paprika or add extra, National Deviled Egg Day is for making and munching on America’s favorite potluck treat. Celebrate on November 2 with your favorite recipe, using trendy ingredients, or buzzing to the grocery store for some easy, pre-made eggs.