Starbucks Clone: Brown Sugar Horchata Shaken Espresso Recipe

I'm going to be brutally honest. I don't like Starbucks. That might be expected considering the gear I test, but if you landed here as a Starbucks lover, I apologize off the bat. With that said, their horchata shaken espresso is their only offering I'll consume when I'm away from my home brewing setup. Naturally, this shaken horchata recipe kicks the Starbucks one to the curb.