Persian-style Gluten Free Shortbread

So there's a bag of besan lurking in the cupboard that was bought for some long-forgotten experiment ages ago, and now needs using up.
Coincidentally, I had just rediscovered my copy of The Legendary Cuisine Of Persia, that had gotten buried in a pile of stuff.
So I was glad to spot the recipe for Nan-e Nokhodchi whilst leafing through - a simple shortbread made with besan, and flavoured with ground green cardamom.
I scaled the recipe up a bit from the rather small batch size in the book.