Mix the very soft butter with powdered sugar and egg white until creamy (using a dough hook), add the flour, almonds and grated chocolate and mix everything well.
Using two teaspoons, place small heaps of dough on the parchment-lined baking sheet. Pay attention to the distance, as the cookies run apart a little when baking.
Preheat the oven (fan oven) to 170 ° C and bake the biscuits for 10 minutes until the edge is slightly golden yellow. Allow to cool and brush with chocolate icing.