Use the sticky tape on the skewer to attach the skewer to the side of flap that has the dents in the lid you made in Step 9. The pointy end of the skewer goes toward the hinge of the flap. The top half of the tape goes over the flap and the bottom half goes under the flap.

You’re almost ready to cook! Open the lid and load your oven with a few s’mores. For this recipe, use one graham cracker as a “pan” to hold the chocolate and the marshmallow. Put on the top cracker when you’re ready to eat it up. Keep the s’mores kind of spread out on the black paper in your oven.

Before you close it up for cooking, you might want to tape a thermometer near the black paper inside the box. Put it in a spot that you can see through the plastic liner so you can keep track of the temperature inside your solar oven.