Based on my experience in East Africa and in the study of Appropriate Technology I would recommend these three things 1) An efficent,affordable, working product: There has a to be an efficient solar cooker available to buy or produce in that culture which works safely, and properly and can be produced by local craftsman, local industry, or imported and sold at reasonable cost. Initially there should be a development agency or catalyst who can shepherd a project to introduce solar cooking into a culture. The culture should be studied. The people should have a real or perceived need to adopt this technology, and the benefits should be shown to early adopters, and promoted to people who will be able to use this technology. Early adopters will accept and use the technology, and demonstrations