Caramel Macchiato. Latte is made from espresso and milk. The latte itself does not contain sugar. The vanilla latte is added with some vanilla syrup on the basis of the latte. The vanilla syrup is a mixture of vanilla essential oil and syrup, and is not very sweet. The caramel macchiato itself is sweeter than the latte. Caramel is also added, and the caramel is sweeter, so the caramel macchiato is sweeter.