Fold the short edge over the long edge as shown. Fold again or roll over to tighten the seal. Make several folds in the two left over, pointed ends to further stabilize your cone.
By Jennifer McGavin, About.com Guide
Fold the short edge over the long edge as shown. Fold again or roll over to tighten the seal. Make several folds in the two left over, pointed ends to further stabilize your cone.