We wanted to make a solar oven to cook a chocolate button on a cracker. First we made a solar oven by cutting open a box then we used tinfoil on the top to reflect the heat on the food. Next we put bubble wrap on the lid to stop the bugs from getting to the food. Thirdly we did the black paper on the bottom to absorb the heat because it absorbs the most heat. When I ate the cracker and the chocolate button 
it was a delicious taste in my mouth.
Have you made a solar oven before?