I don't know PJ .... it is an ancient secret passed from Druid to Druid
Recipes do vary a little, mine is a bit on the sweet side:
8oz flour
4 oz butter
4 oz castor sugar
2 oz currants
quarter teaspoon mixed spice
pinch of salt
1 egg, beaten with a little milk.
Sift flour, spice and salt together. Rub in the butter until it looks like breadcrumbs. Add sugar and fruit.
Add a little of the egg / milk mixture to make a firm paste -- be careful as a little mixture goes a long way !
Roll out to about quarter inch thickness and cut into 2 inch rounds.
Grease a griddle or thick / heavy frying pan ( I use a cast iron bakestone ) and cook on a gentle heat for about three minutes a side, until golden brown.
Sprinkle with castor sugar and allow to cool.
Don't tell the druids, but I sometimes replace the currants with sultanas or chopped glace cherries.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014