Permanently saving a cookie in ios8 Is there a way to permanently save a cookie in ios8? 

So I can clear every other cookie and browsing data but that cookie?

My banking makes me confirm the computer/phone I'm using through email and code, I have to do this each time, only if the cookie is deleted.

I'm using the iPhone 6 no jailbreak.
No.  There is no way to do this through the standard user interface.  Sorry.  I can understand why you might want to do this, but the reality is that -- for pragmatic reasons -- software designers often need to keep it simple and avoid features that only a tiny fraction of their user base will use.