As listed on the Starbucks website, the Iced Shaken Espresso is made with Ice, Milk, Brewed Espresso and Classic Syrup. Espresso is made, then shaken with ice and flavored with a syrup and topped with milk. At home, we’ll do something similar. We’ll brew our own espresso, shake it with ice, use our own syrup (I list some options below) and add a generous amount of milk, which can be plant based.