Pop the popcorn using your preferred method (air popper, stovetop, or microwave) and transfer it to a large bowl.
In a small saucepan, melt 2 tablespoons of unsalted butter over medium heat.
Add ¼ cup of maple syrup and ½ teaspoon of salt to the melted butter. Stir well to combine.
Allow the maple syrup mixture to come to a gentle simmer and cook for 2-3 minutes, stirring occasionally.
Pour the maple syrup mixture over the popped popcorn and gently toss to coat the popcorn evenly.
Spread the coated popcorn on a baking sheet or parchment paper in a single layer and let it cool and dry for a few minutes.
Once cooled and dried, transfer the maple popcorn to a serving bowl or individual snack containers.
Enjoy the maple popcorn immediately or store it in an airtight container for later snacking.