Separate the egg. Knead butter, 70 g sugar, egg yolk and flour on a floured work surface with your hands to a smooth dough. Wrap dough in foil and chill for about 30 minutes. Chop pineapple and 50 g cherries finely. Roast grated coconut briefly in a pan without fat (grated coconut should not turn brown!).
Heat 4 egg whites, 170 g sugar and grated coconut in a pan to approx. 50 °C while stirring. Add the chopped pineapple and cherries, remove the pot from the heat. Form short pastry into a roll (3 cm Ø) on a floured work surface and cut into 35-40 slices (3-4 mm thin). Line 2 baking trays with baking paper and spread the shortcrust pastry biscuits on top. Spread the coconut mixture on the biscuits. Bake the trays one after the other in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 15-20 minutes. Coarsely chop the chocolate coating and melt in a bowl on a warm water bath. Remove cookies from the oven and let them cool down. Dip cold cookies with the tip into the couverture.
Spread the coconut mixture on the biscuits. Bake the trays one after the other in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 15-20 minutes. Coarsely chop the chocolate coating and melt in a bowl on a warm water bath. Remove cookies from the oven and let them cool down. Dip cold cookies with the tip into the couverture. Cut 6 cherries into 6 slices and decorate each cap with a piece of cherry and refrigerate again for another 15 minutes
waiting time approx. 1 1/4 hours