Prepare popcorn in microwave or air popper according to directions.
⅔ cup unpopped popcorn
Melt the butter spread in the microwave.
4 tablespoons butter
Add the lemon juice to the melted buttery spread and mix to combine.
1 tablespoon lemon juice
Slowly drizzle the butter/lemon mixture over the prepared popcorn while tossing to distribute coating and prevent popcorn from getting soggy.
Sprinkle the Old Bay Spice over the buttered popcorn while tossing to distribute as evenly as possible.
1 tablespoon (or more to taste) Old Bay Spice
Serve immediately.
Video
Notes
Watch your popcorn while popping to be sure it doesn't burn.
Make your your Old Bay spice isn't too old. If it has been in your kitchen for more than a couple of years, it's taste will fade and your popcorn seasoning will be a little bland.
To melt the butter, I usually microwave it at 40% power for 30 seconds at a time, stirring in between. Once it is almost melted, take it out of the microwave and stir it for a minute and the rest will melt.