Confections

I found two sites, was looking for similar info about cottage food laws in Indiana and decided to double up for Oklahoma. First link is:
https://www.ok.gov/health/Protective_Health/Consumer_Health_Service/Foods/index.html
but of course their site isn’t complete. They do have contact info there, but the responsibility for regulating home food manufacturing was transferred to the OK Dept. of Agriculture. I found this fact sheet there:
http://pods.dasnr.okstate.edu/docushare/dsweb/Get/Document-9301/FAPC-183web.pdf
and I eventually found the answer to your question about selling online.
“Also, products
baked under the Home Bakery Act cannot be sold at farmer’s
markets, stores, restaurants or on the Internet. Products can
only be sold from the baker’s residence.”
You could email these people at fapc@okstate.edu to find out whether caramel popcorn is a baked good but legally it probably is. Sounds like you would need a business license to do anything more than direct sales. It’s pretty much the same here except our laws allow farmers market sales also.