Step 1In a bowl, combine the yolks with ¼ cup minced chives, the mustard, mayonnaise, cayenne, sweet relish, red onion, lemon juice, Tabasco, chervil and salt until fully incorporated. Taste and adjust seasoning if desired. This makes about 1 ½ cups filling.
Step 2Spoon some of the mixture into each egg white half. Garnish with more finely chopped chives. Serve chilled.