Quickly knead flour, fat, sugar, vanilla sugar, salt and 1 egg to a smooth dough. Form into a ball, wrap in foil and chill for 30 minutes. Crush the marzipan and mix with the egg and icing sugar using the whisk of the hand mixer.
Pour into a piping bag with a small star-shaped spout. Roll out thinly (approx. 3 mm) between 2 layers of foil. Cut out with cookie cutters of approx. 4 cm Ø and place on a baking tray lined with baking paper.
Spray a rim with the macaroon mixture onto the cookies and bake in the preheated oven (electric range: 175 °C/ gas: level 2) for 10-12 minutes. Carefully place on a cake rack and let cool off well.
Warm the jelly separately and apply to the cookies, allow to dry. Results in about 65 pieces.