Cut the eggs in half lengthwise and carefully remove the yolks to a bowl.
To the yolks, add the mayonnaise, jalapeño peppers, mustard and cumin. Mash together until mostly smooth. Season with the salt and pepper.
Spoon or pipe the egg yolk mixture into the egg halves.
Cover and chill for at least 1 hour, or until ready to serve.
Just before serving, garnish with cilantro, if desired.
