Blast O Butter movie theater style microwave popcorn is for extreme butter lovers. This full flavor popcorn delivers an intense, savory movie theatre butter flavor in every bite. The best butter popcorn hands down, this movie theater buttery popcorn is our top-selling flavor. Not only does it taste great; Blast O Butter gourmet microwave popcorn is cholesterol free, 100% whole grain, high in fiber, non GMO and gluten free.