There are so many examples of wacky English here in Thailand that I generally don't even notice them any more. But occasionally one stumbles upon a gem.
What's actually being advertised here is old-fashioned grilled pork. To us, the Sanskrit-origin word sutra - in Thai สูตร - may have connotations of Hindu literature, but to the Thais it has come to mean recipe or more broadly, formula.
Porker, on the other hand, is universal.