Pour the whey into a mixing bowl.
Pour the milk and the salt into a saucepan and bring to the boil, then pour onto the whey, beating with a hand whisk. Cover and leave to rest for 12 hours.
Drain the mixture through a fine muslin cloth placed in a large colander until the cheese has firmed up.
Turn the cheese into a serving dish, decorate with the walnuts and drizzle with the honey.