Hard boil the eggs and pass the yolks through a sieve.
Mix the mixture with the fresh egg yolk, powdered sugar, soft butter and lemon zest and then knead in the flour. Shape the dough into a ball and let it rest in the refrigerator for at least 2 hours.
Then shape the dough into walnut-sized balls and form into strands 1/2 cm in diameter and 14 cm in length.
Fold the rings together to form a wreath, place on a greased baking sheet, brush with egg yolk and sprinkle with granulated sugar.
Bake in the preheated oven at 200 degrees for about 15 minutes.