Whats the secret strawberry drink at starbucks?

A long time ago I tasted an ex-friend's strawberry drink from starbucks. It was really good and I knew it wasnt strawberrys and cream. I've tried the Strawberry Lemonade and it's not the same. Please help me! I really want to know what the drink is.
Whats the secret strawberry drink at starbucks?
Hey i used to be a barista/ beverage wench back in the day...



If it wasnt Milk based i imagine its fruit puree based...



Therefore to make it,

1)simply add a glass full of ice to a blender (that is hardy enough for ice),

2) add50ml of water

3) add about 2-3 tablespoons of fruit puree (i imagine dessert sauce with fruity bits in it may work)

4)blend



If it is Milk based then it would be



1) start with a glass full of ice, then pour milk halfway up while the ice is still in the glass,

2) add to blender

3) add 2-3 tablespoons of fruit puree like above

4) For extra creaminess add vanilla powder/vanilla essence



hope this helps :)