Alhambra-Union's slick backs were too polished for a Taieri side missing league converts Michael Witt and Ryan Shortland.
Elusive winger Karne Hesketh helped himself to two tries in the second half.
But most of the damage was done in the first spell with centre Wayne Gibson making several telling breaks before eventually dotting down himself.
First five-eighth Jone Paumau set his outside backs alight with an outstanding exhibition of passing.
Up front, lock Cowan Finch was magnificent in the air and all three front-rowers scored tries.
For Taieri, No 8 Eric Vaafusuaga kept trying and fullback Mike Kerr looked dangerous when he found space.
Prop Dean Collins scored Taieri's only points when he crashed over in a forward rumble shortly before half-time.
Alhambra-Union 47 (Karne Hesketh 2, Peter Breen, Ben Pereira, Wayne Gibson, Hisa Sasagi, Scott Manson tries; Luke Reihana 3 conversions, penalty goal; Jone Paumau dropped goal) Taieri 5 (Dean Collins try).
Half-time: 25-5.
Referee: Adam Morrison.
