250g/9oz blackberries
1 bunch purple sprouting broccoli
2 banana shallots, finely chopped
1 small swede, cut into 1cm/陆in cubes
1 bunch thyme, leaves picked
500ml/18fl oz chicken stock
salt and freshly ground black pepper
2 tbsp olive oil
200ml/7fl oz port
150g/5陆oz unsalted butter
200g/7oz venison loin