DetailsOrganic Popcorn Popcorn, also known as popping corn, is a type of corn that expands from the kernel and puffs up when heated. It has the ability to do this as its kernels have a hard moisture-sealed hull and dense starchy innards where pressure is built up when heated. Cooking Instructions: Heat a pan to medium high. Heat oil and add popcorn. When popping ceases the popcorn is cooked.