I remember an arcade from my youth that I used to frequent with my grandfather. There were two distinct frozen beverages that the coffee/soda shop there produced that were delicious favorites. I preferred their Julius knockoff as a child, and when older came to appreciate the drink my pap often ordered... the espresso milkshake. The arcade, like nearly all of its kind, no longer exists, but the owner upon retirement shared the formula for my two favorite tasty treats.