01 -
Place the eggs in a saucepan and cover with cold water by 1 inch. Bring to a boil, cover, remove from the heat, and let stand for 10-12 minutes. Transfer to ice water and cool for 10 minutes.
02 -
Tap each cooled egg gently with a spoon until the shell is covered in fine cracks. Keep the shells on the eggs.
03 -
Stir the food coloring and white vinegar into enough cold water to cover the eggs. Add the cracked eggs and refrigerate for at least 2 hours, or overnight for darker lines.
04 -
Peel the eggs carefully, rinse off any shell bits, and pat dry. Cut each egg in half lengthwise and place the yolks in a bowl.
05 -
Mash the yolks with mayonnaise, Dijon mustard, pickle juice, salt, pepper, and green food coloring if using. Mix until smooth and creamy, adding a little more mayonnaise if needed.
06 -
Spoon or pipe the yolk filling into the dyed egg white halves. Wipe the edges clean if needed.
07 -
For each egg half, use one olive half as the spider body and thin slices from the other half as legs. Arrange on top of the filling and serve chilled.