Hi IRNBREWholic, Hawaj is a Yemenite spice mixture that comes in two varieties. One, a blend of powdered ginger, cinnamon, cloves and cardamom, is added to coffee and baked goods. The other, a blend of turmeric, black pepper, onion, cumin, cardamom and cloves, is added to soup.
I have not been able to find a recipe for this that I could say is accurate. The total cost of the Seasoned Pioneers would be £2.50 + £1.95 p&p. The p&p is valid for goods up to £20 in total value so you could order more than one packet.
You could also get some from a seller on e-bay [link] which is slightly cheaper than Seasoned Pioneers as it is in 50g packets rather than 34g
If you want to have a try at this yourself the only recipe I can find so far is at [link] but the writer does admit "These are the basics, NOT the secret stuff..."
So you would have to experiment with it possibly and that is assuming that you can get all the spices easily. I can certainly get all of them where I live.
Good luck!