I put a small amount of butter on top when it came out and let it melt. (mylittlenest.org)
There is a good amount of butter in it, but it is spread over 10 cups of air - popped popcorn so it is still a relatively healthy snack. (strawberriesforsupper.com)
Stir orange zest into larger amount of butter, and cool to room temperature. (spicesandspatulas.com)