The Gosun Cooker is an amazing invention. With it you use the biggest star to prepare quick recipes without any fuel. Gosun optimizes any shred of sunlight to target it over the cooker. Equipped with reflective plates and a glass tube that stores the solar energy as heat. Gosun Cooker emanates heat directly to the food and can heat up to 290° C. In just over 20 minutes you get your roasting, frying, cooking, boiling done. The food cook through Gosun Cooker($269) preserves its natural properties and texture. And the cool thing is that it is super portable and can be carried to the backpacks.
Available at amazon.com for $269