Peel the mandarins and cut into wedges. Wash the blueberries and pat dry.
In a bowl, stir the yogurt with the vanilla sugar until smooth and fold in most of the blueberries. Save a few berries for decoration.
Fill the vanilla yoghurt into 2 deep plates, spread the tangerine wedges around them, add the remaining decorative blueberries and finally pour generous coconut chips over them.