Get the buttery flavour of real theatre popcorn with no added fat. Sprinkle this popcorn seasoning onto your popcorn vegetables or pasta to impart a buttery taste. 5.5 ounce jar. To use shake seasoning onto popped popcorn to taste. Shake popcorn until completely mixed - a closed container or bag works best. If using a hot air popper coat popcorn with a vegetable oil spray before mixing.