Buttered mashed potato
Frozen product. Once defrosted, reheat and consume within 48 hours.
Defrost fully, before reheating in the microwave, or empty into a saucepan and reheat gently, stirring regularly until piping hot. As you reheat it, the mash may separate and look lumpy and watery for a time but if you heat it gently in a saucepan, stirring from time to time, then suddenly, magically, it will reassemble itself and be as fluffy and delicious as it was the day it was made.