So you want to see REAL NZ food and beverages?.
Now, I'm from the South Island of New Zealand, I don't mean to sound biased but, you would be best off avoiding most of the eateries in the North Island.
I've lived/worked up there before and the quality of fare is not as good as the stuff we have down here and the service is better.
I've waited for up to an hour to get a Medium/Rare steak.
If you want to get a real feel for NZ food, get to the West Coast of the South Island.
I don't come from there, I come from the East Coast.
The food over there is made with real passion.
Around about now is the run of the Whitebait season, expect high prices (sort of) but once you have tried Whitebait, there is no going back.
BTW, anyone that asks for any accessories to Whitebait (like Ketchup) should expect to wake up on the next day, clothes missing and sitting in the riverbed.