Preheat oven to 250 degrees Fahrenheit

Line a large baking sheet with foil or parchment paper, and spread popcorn over it.

In a small saucepan melt together butter, sugar and corn syrup over Medium Heat until melted and slightly bubbling.

Stir in several drops of food coloring and vanilla.

Quickly pour over popcorn on pan and stir to coat with a spatula.

Place in oven and bake for 20 minutes

Remove and allow to cool. Break into pieces and serve!