2–3 tbsp chopped spring onions, fresh chives or fresh flatleaf parsley, plus extra for serving
275g/9¾oz cold mashed potato
75²µ/2¾´Ç³ú plain flour
½ tsp baking powder
½ tsp bicarbonate of soda
salt and freshly ground black pepper
oil, for frying
knob of butter
2 large free-range eggs
75ml/2½fl oz–125ml/4fl oz milk
soured cream, to serve (optional)