They aren’t secret, pretty much any chef can duplicate them with the time.
But what’s the point? You can’t make any money making and selling black market KFC or Cocacola. It would literally be more profitable to buy the real thing and re-sell it. Seamless and supermarkets do this. You’d make a hell of a lot more money working in a job at KFC or Coke than trying to compete with them.
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