Peel and finely chop the ginger. Wash blueberries, dab dry. Puree 3/4 of the berries with apple juice and 3 tbsp. syrup. Mix yoghurt, milk, 2 tablespoons syrup and ginger
Wash mint, shake dry. Pluck off the leaves. Put mint and other berries alternately on skewers. Put the blueberry puree and yoghurt milk into 1 glass at a time (both mixtures should have the same consistency), marble them with a long spoon handle and put 1 blueberry skewer