Roasted Meat Marinade (Nyama Choma)

I found this recipe in my local paper. This is a recipe of Johnson Njuguna, he is head chef at a Hotel, near where I live. He states "according to African tradition, men are not supposed to cook and don't go into the kitchen, but it's changing, although some woman still chase men out." He loved cooking and before coming to Australia he learnt his craft at a Kenyan college. He was also head chef at one of Nirobi's prestigous Hotels. I have not made this yet but fully intend to try it. He also states that in Kenya "Simba Mbili brand curry powder is a favorite." Ingredients are left up to your taste, as to how much or little you prefer. Times will vary as too how long you wish to marinade and I have not included roasting of the meat in the cooking times.