Jersey royal and parsley mash

Method

1. Cook the potatoes in a large pan of boiling, slightly salted water for 15-20 minutes until tender. Drain, then crush roughly with a fork. Leave to cool, then spoon into bags or a suitable container and freeze.
2. Allow to thaw completely. Put the butter and milk in a large pan over a very gentle heat. Add the potatoes and heat gently for 15 minutes, turning fairly regularly with a wooden spoon until heated right through. Mix in the parsley and season well just before serving.