You’ll need more than your coffee maker for this Italian classic.Credit: Getty ImagesMy favorite seasonal Starbucks order—a sugar cookie latte—starts with a double shot of espresso, as do many other specialty drinks like lattes and mochas. But other than the machine used to make it, what makes this concentrated caffeinated concoction different from my regular cup of joe?From the brewing process to the beans, flavor profile, and even how they’re …