Beat the yoghurt with the sugar to form a smooth, creamy paste
Add some lemon rind and give it a good stir
Line a cup with some crumbled cookie or crumbled cake
Add some granola and some fresh fruit
Layer with yoghurt
Add another layer of granola and fruit
Garnish with lemon rind, fresh fruit and a dash of cocoa powder (or some nuts)
Chill for half an hour, if you like, before serving