Line 2 baking trays with baking paper. Beat egg white and salt until stiff. Gradually fold in icing sugar. Fold in almonds and aniseed. Pour into a piping bag with a large perforated spout and spray 4-5 cm long strips onto the baking trays
Dry both trays in the preheated oven (electric cooker: 100 °C/ circulating air: 75 °C) on the 2nd and 4th rail for 1-1 1/2 hours (gas: see manufacturer's instructions), changing the trays every 30 minutes. Allow to cool down
Roughly chop the chocolate coating. Melt in a hot water bath. Spread some chocolate coating on each aniseed stick. Sprinkle with pistachios and leave to dry