Preheat oven to 200 degrees Fahrenheit.

In a medium saucepan, combine brown sugar, butter, honey, and salt.

Bring the mixture to a boil over medium heat, stirring constantly.

Remove from heat.

Add baking soda and vanilla extract.

Pour the caramel mixture over the popped popcorn in a large bowl.

Stir gently to coat the popcorn evenly.

Spread the coated popcorn in a single layer on a baking sheet.

Bake in the preheated oven for 1 hour, stirring every 15 minutes to prevent burning.

Remove from oven and let cool completely.

Store in an airtight container to maintain freshness and prevent stickiness.