Sorry - can't help with the recipe at all, and this is way off-topic.
But if you ever get the chance to visit Pontefract Castle, (
http://www.wildyorkshire.co.uk/naturediary/docs/pomfmap.html)
grab it - especially on a Sunday or Bank Holiday. They used to grow loads of liquorice there, and you can visit the cellar/dungeon/much-used-hole-in-the-ground - and the guide is the most magical story-teller I've come across. Kept an audience of 5-75 year olds bewitched - for way beyond the allotted time for the tour!
All best - Gavin