Lime, clove & pine nut shortbread

I’m a big fan of shortbread - my Gran, Molly Gordon, was the world’s best shortbread baker as far as I’m concerned. The only negative thing I can say about this wonderful traditional biscuit is that I find the very pale ones (although traditionally they should have no colour) lacking in ... well... colour. I prefer them to have a tint of golden brown to them as I find the flavour more appealing. But then, as you’ll see in the following recipe, I make them even more rebellio