Chop the chocolate and melt in a hot water bath. Mix 250 g flour, cocoa and icing sugar. Add butter in pieces, egg and 2 tbsp. melted chocolate. Knead first with the dough hooks of the mixer, then with your hands briefly to a smooth short pastry.
Cover and chill for about 30 minutes.
Line two baking trays with baking paper. Preheat the oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer). Roll out short pastry to a thickness of approx. 5 mm on a floured work surface. With beard cutters (see
below) Cut out beards. Dust the embossing stamp on the back of the cookie cutter with flour and press it into the beards. Place the biscuits on the trays. Possibly put 1 wooden skewer in each of the biscuits as a handle. Bake one after the other in a hot oven for about 10 minutes.
Take out and pull off the sheet together with the paper. Let the moustache cool down.
Re-heat the rest of the chocolate and put it in a freezer bag, cut off a small corner and decorate the moustaches with it. Leave to dry.