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 just above the ice to create layers.

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

Serve immediately with a straw. Stir to combine the layers before drinking.