Blackberries and Greek Yoghurt

2 boxes blackberries
Sugar, to taste
Greek yoghurt
Icing sugar, to taste

Wash the blackberries and place in a pan with sugar and a little water. Bring to the boil, reduce heat and simmer for 5 minutes or until the blackberries are soft. Remove from the heat and allow to cool. Meanwhile, mix Greek yoghurt with icing sugar, serve with the blackberries.