Solar Box Cooker

http://homemadesolar.net/concentrator/solar-box-cooker/

Solar box cookers or solar box ovens are one of the easiest cookers to make, and they are very effective. You’ll need a few cardboard boxes, some foil, non toxic black paint, white glue, and an oven cooking bag.

[For complete instructions, go to: homemadesolar.net]

[Via Sabri]