|garden cress, to garnish|
|trout caviar, to garnish|
In a small saucepan, bring water to a boil. Boil eggs for ca. 8 – 10 min. then transfer to an ice bath. Peel eggs and halve lengthwise, then slice a small piece of white off of the bottom of each egg to create a flush surface. Remove egg yolks with a spoon. Set aside. Mince onion.
In a small bowl, combine egg yolk, mayonnaise, lemon juice and mustard. Blend until smooth. Stir in onion. Salt and pepper to taste.