For the dough, separate the eggs. Knead flour, butter, 100 g icing sugar, egg yolk and a pinch of salt. Form dough into a dumpling, wrap in foil and chill for about 1 hour. Halve the dough and roll out between two layers of baking paper about 3 mm thick. Cut out cookies with a flower cutter (7 cm Ø). Cut the flowers in half and put them on 3 baking trays lined with baking paper. Beat the egg whites, 1 pinch of salt and lemon juice until very stiff, then add the sugar.
Fold in almonds and aniseed. Pour the mixture into a piping bag with a small perforated spout and squirt onto one half of the cloud cookies. Bake one after the other in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for about 15 minutes. Let them cool down on a cake rack. Briefly heat up the lemon jelly while stirring, spread on the unsprayed cookies, cover with the others, press down lightly. Let the jelly set. Sprinkle the cookies with 3 tablespoons of icing sugar
waiting time approx. 1 1/2 hours