Beat together the eggs and sugar using the whisk on a hand mixer for approx. 4 mins. until the mixture becomes lighter in colour. Stir in the aniseed and Kirsch. Mix the flour and psyllium, and stir into the egg mixture.
On a lightly floured surface, roll out the dough in batches to approx. 1 cm thick. Cut out shapes of your choice (e.g. flowers), place on lightly greased trays. Leave to dry for approx. 12 hrs. or overnight.
Bake for approx. 15 mins. in the lower half of an oven preheated to 150°C, remove and allow to cool a little, carefully separate from the tray using a spatula, leave to cool completely on a rack.