Egg Salad in Crispy Easter Nests

Name: Egg Salad in Crispy Easter Nests
Prep time: 20 min
Cook time: 1 h
Total time: 1 h
Yield: 12 piece
Ingredients: water; 6 egg, European medium (53-63 g) (from chicken); butter, unsalted (from cows' milk); 250 gram wheat flour; 30 gram olive oil; 120 gram water; ½ teaspoon salt; 2 sprig parsley leaf, fresh; 20 gram shallot; 30 gram sour cream, any type; 10 gram Dijon mustard; 10 gram mayonnaise; 10 gram white wine vinegar; 1 teaspoon salt; 2 pinch black pepper, ground