Popcorn is made from special varieties of corn that pop open and puff up when heated. When the corn is heated, the high amount of natural moisture trapped inside the hull suddenly expands, creating enough pressure to make the hull burst open, which releases the grain and turns the expanded kernel inside-out. The result is a delicious light snack.
Toss popcorn with low-sodium seasonings; try sesame seeds, ground kelp, or a combination of garlic powder, oregano, and Parmesan cheese.