Mix the chia seeds with the water and place in the refrigerator for 5 minutes. Then mix with the other ingredients in the food processor or with the hand blender.
Roll out the dough between two pieces of baking paper approx. 8 mm thick and cut out cookies with cookie cutters. As soon as the first dough surface has been cut out, roll out the dough again and repeat the process until all of the dough has been processed into cookies (alternatively, the dough can also be formed into small balls, placed on the baking paper and pressed flat by hand).
Bake the biscuits for about 15 minutes.
Let cool completely, then serve for tasting. Keep hermetically sealed and in a cool place.