For sweet cheese sticks, knead a dough from butter, gentian cheese, flour and egg yolks. Let the dough rest for 1/2 hour. Beat egg whites and powdered sugar by hand until fluffy.
Color half of the glaze with cocoa powder. Roll out the dough to the thickness of the back of a knife. Then spread the white icing. Pipe on the dark icing in strips (1/2 cm wide).
Now draw stripes with a knitting needle as with the esterhazy cake (once from right to left and once from left to right ).
Then cut into sticks and bake at 170 degrees.