Microwave ingredients “A” until melted (about 30 seconds) or warm over a bowl of hot water until melted.

Sieve ingredients “B” twice into a bowl. Make a well in the centre and incorporate ingredients “A”. Rub your hands liberally with white fat, then pull and knead the paste until smooth. Add extra cornflour if it? sticky.

Wrap paste tightly in a plastic bag and place in an airtight container. Leave to mature overnight. It will feel quite hard when cool, but will soften when worked in small pieces.

This paste freezes well. Simply cut into portions, wrap each piece tightly in freezer film or plastic, place inside an airtight container, and freeze until required.