An absolute favourite at kids birthday parties You will need: 1 Cup butter 1 Cup light corn syrup 2 Cups packed light brown sugar 1/ 2 Cup granulated sugar 14 oz sweetened condensed milk 1 Tbsp vanilla 15-30 cups popped popcorn. Less will be messier, and gooier, but I like it; more for a looser caramel popcorn. Method: Bring the butter, syrup, and sugars to a boil, keep bubbling over …