Years ago, a Jordanian girl cooked up a cup of coffee for me Turkish-style using cardamom pods. It was very potent, but delicious.
I've just tried grinding up 4 or 5 pods in my Porlex and adding the grounds to some Monsoon Malabar coffee I ground up in my Iberital. I then made a double espresso shot using my Gaggia and tasted it.
I thought the malabar, which is a very full-flavoured coffee, would drown out the spice, but no, it was definitely there only rather subtle. Next time I shall double the spice dose to see if that ends up too strong and tweak it till I get to where I think it should be.
Has anyone else tried anything like this? Any tips? Any other spices suitable for the process? Cinnamon jumps to mind and I have some sticks in the kitchen...