This recipe for walnut cookies is simple and delicious, perfect for a weekend treat. The cookies are made with egg yolks, sugar, vanilla sugar, orange blossom water, ground walnuts, shredded coconut, and powdered sugar. They are easy to make and will quickly become a favorite. Preheat the oven, whisk the egg yolks with the sugars, add the orange blossom water, walnuts, and coconut, shape the dough into small balls, roll them in powdered sugar, bake for 20-25 minutes, and dust with more powdered sugar before serving.