This is exactly how you order it:
[Beverage size] Toffee caramel frappuccino with one pump of vanilla, double blended, extra whip, and extra caramel drizzle (they put it on the inside of the cup).There are some people who leave off the extra whip and double blend. I prefer double blended because it makes the texture perfect.
I think it's superbly tasty and all it really is, is a toffee caramel frap. Lots of repostings of my recipe tell you how many pumps to put in, that's wrong. Only because you should leave that to the barista because pumps change depending on what size you buy. Also it seems like lots of people are forgetting to add the pump of vanilla, believe me. It makes a difference.
It's also very sweet, I suggest getting a tall. I know most of you like to get ventis or trentas, but seriously... that's a LOT. I told all my friends to try it and they all couldn't stop drinking it. That's when I posted it on Tumblr. A few days later several people started reblogging instagram pictures of their butterbeers. I was very happy and I'd love to share this with all interested!
Here are a few pictures people have posted snagged from http://www.tumblr.com/tagged/butterbeer+frappuccino
There have even been some lovely demonstration videos! This lovely lady in Vancover adds root beer to her's, yummy!