Preheat oven to 250 degrees F
Place your popcorn evenly on two large baking pans covered with parchment paper.
In two medium saucepans over medium heat.
Add 1/2 of each of the following ingredients to each saucepan.
Add butter your butter first and melt.
Stir in sugar, corn syrup, vanilla, and salt into both saucepans.
Bring to boil while stirring consistently.
Boil without stirring for 4 minutes.
Remove from heat.
Split the mixture into 3 small mixing bowls.
Add your food colors one in each bowl.
Mix all bowls until the mixture is evenly colored and combined.
Stir in baking soda.
Mixture will double.
Pour the mixture over the popcorn and stir to combine and evenly coat.
Place the popcorn in the oven.
Stir the popcorn every 15 minutes for 1 hour.
Remove from the oven.
Let cool for about 5 minutes.
Mix in the black licorice