A Klondike Bar is this:
It's pretty much just a brand-name ice cream bar/sandwich depending on your preference.
The slogan that made/kept them famous was:
What Would YOU Do For A Klondike Bar?
There you have it. Now you can all 'ooh' and ahh' at the utter brilliance of my last post''s title! (I'm 'oohing' and 'ahhing' too. You're not alone.)
Are they really this good?
Hell if I know. I'm lactose intolerant. I've never had one.