Here is a video of our Solar Oven I made from a Cardboard Box. We have really enjoyed cooking in this oven and yes, it really does cook food… even meat. It is made on the style of one I seen here on Youtube and the meal is made from a recipe we found on here as well. These ovens are great for slow cooking. The meat is tender and you don’t have to worry about burning the food. Plus, you are not using the 220 of your oven and heating up the house, so you don’t have to run the air more to cool the house down while cooking. It saves us from having to run two of our 220 grid power appliances so it saves us money! Plus, the food is so good and it’s a lot of fun to use as well.