Turn in for Sprinkle's secret ingredient

[jymz]

Guide directs you to fly to theramore, not to gadetzan.

[Zygor]

This is because earlier in the guide, it tells you to set your hearthstone to Theramore Isle, so the travel lines in the step are assuming your hearthstone is set there. Once you go to those locations, you will be directed to fly to Gadgetzan.