2 carrots, peeled and finely diced
100²µ/3½´Ç³ú chestnut mushrooms, finely chopped
½ tsp ground coriander
1 large onion, finely diced
100²µ/3½´Ç³ú porridge oats
60²µ/1¼´Ç³ú yellow split peas (soaked in boiling water for an hour, or in cold water overnight, then drained)
1 tbsp yeast extract
1 tsp ground allspice
1 tsp ground black pepper, plus extra for seasoning
salt and freshly ground black pepper
60²µ/1¼´Ç³ú pearl barley
2 tbsp treacle
500ml/18fl oz vegetable stock
60²µ/1¼´Ç³ú butter, plus extra for greasing