Spread popped popcorn on a large baking sheet.

In a small saucepan, melt butter completely. Add BBQ sauce and a few dashes of salt. Stir until combined.

Spoon BBQ mixture over the slightly cooled popcorn and using a spoon, toss the popcorn gently to coat with BBQ.

Enjoy immediately, or place into a sealed ziploc bag or container to store.