Beat egg whites until stiff. Add lemon juice and gradually add sugar. Fold in lemon zest, ginger, grated coconut, vanillin sugar and flour. Pour the mixture into a piping bag with a perforated spout and spray small mountains onto a baking tray lined with baking paper.
Bake in the preheated oven (electric: 175 °C/ gas: level 2) for 12-14 minutes. Remove and let cool. In the meantime, roughly chop the chocolate coating, place half of it in a bowl and melt on a not too hot water bath.
Remove from water bath, add remaining chocolate coating with coconut oil and melt while stirring. As soon as the chocolate coating has cooled slightly, dip the coconut mountains in it as desired and allow to dry. Results in about 48 pieces.