Starbucks or coffee shop employees ??

Hi there!! Coffee addict here!!

I neeeeeeeed to know how to make a frappuccino! Ive tried all kinds of recipes.

It always comes out watery tasting, and more like a slushie 😑

I have a breville espresso machine, and a vitamix blender. So i have good gadgets to make a good blended coffee... But nothing comes out the way it does when you buy one.

SO question... what is the secret recipe to make a good frappe??!?

Is there a powder of some sort they use to make it stay blended together? 😭