In a medium saucepan, combine the corn syrup, granulated sugar, brown sugar, butter, and vanilla extract over medium heat. Stir until the sugar has dissolved and the mixture is smooth.
Remove from heat and stir in the baking soda until combined.
In a large bowl, combine the popcorn and the syrup mixture until the popcorn is evenly coated.
Line a baking sheet with parchment paper and scoop the popcorn mixture into balls. Place them on the baking sheet.
Bake for 8 to 10 minutes, or until the popcorn is golden brown.
Let cool before serving.
Interesting Facts
Popcorn candy balls can be stored in an airtight container for up to one week.
You can add other ingredients like nuts, candy, and dried fruit to your popcorn candy balls to add a unique flavor.
Popcorn candy balls are a great way to use up leftover popcorn.