According to the Coca-Cola Company, the formula has never been given out. But who knows? This could be the biggest leak ever... There is just a few problems with this, all of which are surmountable: Where can you get extract of cola and citrate of caffeine? (Of course it might be okay for some people to just leave out the caffeine.) A bigger problem would be producing carbonation at home, unless you have special equipment. But this recipe may be for a syrup concentrate to be mixed with carbonated water.