In a pan put the berries and the sugar and start to cook at low heat.
Make sure you will always stir and don't let the mix stick on the bottom of the pan.
During the cooking fruits will relies all the juices.
Let reduce them slowly.
After 20 min switch off he fire and let it rest.
When it will be warm enough put in a container and store in the fridge.
The final result is a really deep red coloured compote.
You can use this compound to decorate cakes or as an integral part of preparations such as: pannacotta, cheesecake or dressing.