250g/9oz lettuce leaves, trimmed, washed and thickly sliced
1 onion, finely chopped
freshly chopped chives, parsley or dill
400g/14oz potatoes, peeled and cut into roughly 2cm/¾in chunks
salt and freshly ground black pepper
2 tbsp oil (any cooking oil will do)
800ml/1â…“ pint chicken or vegetable stock, made with 1 stock cube
2–3 tbsp single or double cream