Delia:
350g trimmed celery stalks, save the leaves
110g potatoes, peeled and cut into chunks
2 medium sized leeks (whites only) sliced and washed
1pt (570ml) chicken stock
150ml single cream
150ml milk
1/4 teaspoon celery seeds (optional I don't always use)
25g butter
Salt & black pepper
In a largish pan melt the butter over a low heat. Chop the celery and add it to the pan with the potatoes and drained leeks. Sitr well, coating the veg with butter, cover with a lid and cook for about 15 mins.
Then add stock with the celery seeds and some salt. Bring to simmering point, cover once more and cook very gently for 20-25 mins or until the vegetables are really tender. Puree the soup by liquidising or sieving, then return to the pan, stirring in the cream and milk.
Bring the soup back to the boil, check the seasoning, adding more s&p if necessary. Just before serving, chop the reserved celery leaves and stir them in to the soup to give it extra colour.