Cut the chocolate and hazelnuts into small pieces. Make a kneading dough from all the ingredients.
Divide into three equal parts and form rolls approx. 5 cm in diameter. Cool well for approx. 1 hour. Then cut into approx. 1 cm thick slices and place on a baking sheet.
Bake at 160 - 175 ° C for about 10 minutes on the middle rack.