1. Defrost the blackberries 20 – 30 mins before starting.
2. Preheat the oven to 200c.
3. Cut the plums in half and remove the stone.
4. In a separate bowl, mix the light soft brown sugar with the ground cinnamon.
5. Place the plums skin side down in a shallow roasting tray and sprinkle the cinnamon sugar liberally over the plums.
6. Pour the orange juice into the roasting tray from the side.
7. Place the plums in the oven for 20 mins until they are glazed and softened.
8. Defrost the blackberries and place them into a bowl from a mixing machine with the double cream.
9. Secure the bowl to the mixing machine, place the whisk attachment to the machine and whisk together until light and fluffy.

To Serve

Spoon four halves of roasted cinnamon plums into a serving bowl per person and spoon the lightly whipped blackberry cream on top.