Knead the ingredients for the dough together well, at first only add 1 tablespoon of milk so that the dough does not become too sticky with a large egg or very soft butter. Then let it rest for 30 minutes.
In the meantime, prepare the filling by mixing sugar, grated nuts and egg white with 4-5 tablespoons of water (the filling should be spreadable). Finally, depending on your taste, add bitter almond oil (I always use 1/2 bottle).
Then roll out the dough on a floured work surface (approx. 30 cm x 40 cm) and brush with the filling. Roll up from the narrow side, cut the roll lengthways and form a braid from the two halves. Place on a baking sheet lined with baking paper (cut surface facing down).
Bake on the middle shelf in the preheated oven at 180 ° C for approx. 25-30 minutes.
When the braid has cooled down a bit after baking, mix the powdered sugar with a little water and pour this topping over the cake.