New World's manager for customer experience and insights, Kay Bramley, said the supermarket chain was well-stocked for last-minute shopping.
"This is probably due to our customers wanting to have the freshest cherries and plumpest chook possible for Christmas Day," she said.
"With a bit of planning you can avoid mayhem, but we're well stocked and ready to roll for this year's crazy week of shopping."
New World Mount Roskill manager Dave Lowe said berries and cream weren't the only products bought late into Christmas Eve.
"Shoppers either ate their whipped cream and berries too quickly, or more unexpected guests arrived at their doorstep expecting a slice of pav," he said.
"[It's] not surprising that we see an uptick in champagne, wine and beer purchases. Everyone worries at the last minute that they won't have enough booze."
New World's Clubcard data also showed specialty cheeses, especially blue cheese, were commonly bought alongside bubbly wine.
In the weeks before Christmas, champagne, methode traditionelle and sparkling wine were most often bought Saturday afternoon or the evenings of Thursday and Friday. However, the week before Sunday afternoon was the busiest.
Strawberries were always popular around Christmas. Photo / Doug Laing
Older customers were more likely to buy bubbly wine in the earliest parts of the day and younger customers from late afternoon into the evening.
Cured meats, salami, hummus and crackers often accompanied bubbly wine purchases.
But cheese preferences changed between islands, with South Islanders leaning towards brie or camembert, and North Islanders going for the mozzarella or goats' cheeses.
The data also showed most Kiwis did their biggest shops of the year within a fortnight of Christmas.
Forty-three per cent of New World customers did their largest shop the week before Christmas with 31 per cent doing it the week prior.
Boxing Day sales are also a big hit at supermarkets. Photo / File
Four Square Paihia was open on Christmas Day last year and owner Scott Jackson said easy-to-go products were popular.
"We sell heaps of fresh, hot chickens and good-to-go, like salads and beverages for the car ride," Jackson said.
"We're open to help people who are travelling, heading to the beach for a low-key Christmas or just popping in for last-minute items."
