1 carrot, peeled and chopped
1 celery stick, finely sliced
10g/鈪搊z dried mushrooms, either mixed or porcini
1 onion, finely chopped
1 tbsp plain flour
1 tbsp redcurrant jelly
1 tsp yeast extract, such as Marmite
freshly ground black pepper
2 tbsp sunflower or olive oil
flaked sea salt
陆 vegetable stock cube