454 g pack lean sausages
1 tbsp vegetable oil
1 onion, finely chopped
150 g celery, cut into 5 cm sticks
250 ml cider, alternatively use 1 vegetable stock cube made up with 250 ml boiling water
1 vegetable stock cube made up to 1 1/4 cup (300 ml) with boiling water
1/2 x 20 g pack fresh thyme, roughly chopped
2 bramley cooking (tart) apples, peeled, cored and quartered
75 g walnut halves
3 tbsp balsamic vinegar
1 tbsp cornflour blended with 2 tbsp cold water
salt and freshly ground black pepper