Using the whisk attachment, mix in the food processor, the room temperature butter and the sugar.
Then mix in the flour, cinnamon powder and cocoa powder.
Divide the dough into 2 parts and roll into3-4cm diameter rolls.
Rest in the refrigerator for at least 1 hour.
Rub the cylinders with egg white and roll them in granulated sugar.
Cut into 1 cm slices and place on a baking tray lined with baking paper.
Bake at 180 ° C for 18-20 minutes.
Tips for extra finishing
You can add 150 g dark chocolate Callets 811 roughly chopped to this dough as an extra.