Carefully cut each hard-boiled egg in half lengthwise. Remove the yolks and place them into a medium-sized mixing bowl. Set the egg white halves on a serving platter, cut side up.
Mash the yolks with a fork until they’re broken down into fine crumbs. Add mayonnaise, mustard, and a splash of either white vinegar or fresh lemon juice for tang. Add the paprika and turmeric (for that festive orange color), salt and pepper. Stir everything together until the mixture is creamy and smooth.
Using a spoon or piping bag, fill each egg white half with a generous amount of the orange yolk mixture. Try to keep the filling slightly domed and rounded on top - it will help create the pumpkin look.
To give your deviled eggs that pumpkin-like appearance, use a toothpick, skewer, or the dull side of a butter knife and gently drag vertical lines down the filling to mimic the ridges of a pumpkin.
Cut small pieces of chive, parsley stems, or even tiny slivers of celery leaf and press one into the top center of each egg to act as a pumpkin stem. This little green touch brings the whole look together.
Refrigerate the eggs until ready to serve, then bring them out for a festive fall appetizer that’s as cute as it is delicious!