Make a dough from flour, sugar, vanilla sugar, egg yolk, bitter almond oil and margarine. Roll out thinly on a work surface sprinkled with flour and cut out round cookies approx. 5 cm in diameter and place on a baking sheet lined with baking paper. Then brush with milk.
Beat the egg whites until stiff. Add the marzipan in pieces and stir until smooth. Fill into a piping bag with a star nozzle and use it to spray rings onto the cookies. Then fill this with the jelly.
In the preheated oven a. Bake for 15 minutes at 175 ° C (until the tips of the rings turn light brown).