I hope this is ok to post, since it's not technically a pastry...I've been trying to find a good popcorn ball recipe like ones I remember having years ago, with no success. They are either too sticky-the popcorn sticks to your teeth, or too brown (caramelized) if I try cooking the syrup longer. The ones I remember were not caramel corn. Searching online, I've seen recipes w/ the temperature anywhere from 250 ° to 290 °. Most recipes are similar otherwise, except some have vinegar, which I haven't tried adding. What is the function of the vinegar? Using marshmallow or any other 'glue' is not an option. My nephews are counting on me to make these for Halloween, so I need to find a reliable recipe.