Line a baking tray with baking paper. Form dough rolls into 2 triangular sticks. Cut into slices of about 1/2 cm thick with a damp knife. Place on the baking tray. Bake in the preheated oven (electric cooker: 200 °C / convection oven: 175 °C / gas: level 3) for 8-9 minutes. Let cool off
Chop the couverture and melt in a hot water bath. Dip each cookie with a corner in the chocolate coating and then sprinkle with pistachios or coconut flakes. Leave to dry