how to make deviled eggs
start with hard boiled, cooled eggs. Slice the eggs in half lengthwise, removing yolks to a medium bowl, and placing the whites on a serving platter. Mash the yolks into a fine crumble using a fork. Add mayonnaise, vinegar, mustard, salt, and pepper, and mix well. Evenly disperse heaping teaspoons of the yolk mixture into the egg whites