Cook your popcorn kernels your preferred way. If using a silicone popcorn bowl, cook kernels in the microwave with the lid on for about 3 minutes on high or until popping slows to 8 seconds between pops.
While popcorn is cooling, melt butter in the microwave (around 45 seconds to 1 minute) and let cool slightly.
Pour popcorn into a mixing bowl. Drizzle half the butter over popcorn, then sprinkle with half the cheddar cheese sprinkle. Stir with a spatula or wooden spoon. Repeat with the remaining butter and cheddar sprinkle, and season with salt, to taste. Enjoy!