Pour the vanilla syrup into a tall glass.

Add the cold milk to the glass and stir to combine with the vanilla syrup.

Fill the glass with ice cubes to the top.

Slowly pour the freshly brewed espresso over the back of a spoon held just above the ice, allowing it to cascade over the top and create layers.

Drizzle caramel sauce over the top in a crosshatch or zigzag pattern.

Serve immediately with a straw, and stir before drinking to combine all the layers.