I was shopping at Target yesterday and I found a bottle
of "Kettle Corn Popcorn Glaze" made by Back To Basics.
Now, you can make your own kettle corn at home! The stuff is
the consistency of sugar/salt and you add it to the oil before
popping. It is not for air popped popcorn.

In case you don't have a Target near you---order it yourself from
the people who make it. They have a lot of stuff at their website
like smoothie machines, dehydrators, old-fashioned popcorn poppers
and juicers. They have some recipes too.