Well as a misplaced Kiwi (Living in Portland Or. U.S.), there are gobs of things I miss. Some I can get, others.... no way.
Marmite - You can get it here but damn its expensive! I am yet to meet an American yet who likes it, which leads me to conclude only foreigners buy it.
Jaffas - Mmmm Candy of the Gods. also well known for disturbing the peace at strategic points in the movies by tipping the entire box out onto the sloping wooden uncarpeted floor of the theatre. or even better... one at a time.
Minties - Yeah watchout for those fillings tho, that candy can suck the fillings right out of your head and crack the strongest of teeth, but dem iz good stuff.
Real Fish and Chips - My dream about whenever I go home to Christchurch is to go hit up the Wairakei Rd Fish and Chip Shop for a good feed of REAL Fish and Chips, nothing better than a good deep fried Sole Fillet, Battered Hotdog & Pineapple ring and a scoop of GOOD chips!
A Stevies - If you are a kiwi especially if you are from Christchurch you know all about the famous or infamous Stevenson Square pie. They had an affectionate name of the "Stevies Maggot Pack" as a kid (health quality was not alway what it should have been in the Stevies factory. A little later in life these served as the staple Sunday morning pick me up after a hard night night knocking the froth off a few too many, A trip down to the corner dairy (Quickie Mart / 711) for a Stevies and a Big Banana Zip (Banana Flavoured Milk) was a perfect way to start the day.
Also Cannot Forget Lemon and Paeroa (pron. Pie-row-wa) The one and only Softdrink on the planet that can turn Jack Daniels into total Liquid Velvet. The finest softdrink known to man, available only in good ol 'Nu-Zillind'
Phil