All four remaining teams are passionate about being involved in cooking fulltime or launching their own food ranges.
Laos-born friends Dal Philavong and Dai Phonevilay - team "Sugar and Spice" - would use some of the cash for family holidays, as well as try to bring Lao food mainstream.
"We have always been told to dream big or don't dream at all," Philavong said. "We want to create a line of sauces, marinades and meal kits specialising in Lao cuisine that would be available in supermarkets. It's time for New Zealanders to get their hands on our little secret."
Belinda MacDonald and Neena Truscott - the "Modern Day Hippies" - said any winnings would be useful to pay off debt.
Some would also go towards getting a motorbike for MacDonald's husband and a surf trip to Bali for Truscott's spouse.
Launching their own healthy food product lines would also be a priority.
"The money would enable us to get the best industry expertise and guidance to help spread our message," MacDonald explained. "We are all about empowering people when it comes to caring for family wellness."
The Auckland-based "Corporate Dads" team, Josh King and Aaron Gascoigne, are also working on product lines that could benefit charities.
King came close to unravelling when he served a sick child, the spitting image of his son Caden, during an episode at Auckland's Ronald McDonald House.
"If we are lucky enough to take home the $100,000, we would like to use it in a way that could benefit others," King said.
"We have plans to launch a Two Fat Cats butter range and perhaps a summer wine range that would allow us to give some funding back to charities.
"The Ronald McDonald episode highlighted to us that no child or family should have to walk their painful journey alone. It is important that we all care and that they have someone to support them - even if it is two silly corporate dads with big hearts."
Doing the hard yards
Some of MKR's amateur cooks are earning placements at a restaurant run by one of the show's judges.
Semifinalist Aaron Freeman has already been putting in 12-hour shifts five days a week at celebrity chef and co-judge Ben Bayly's eatery, The Grove, in Auckland.
Fireman Ian Wright was eliminated from the show but plans to take leave from his job in Wellington to gain hands-on experience at The Grove.
"Both guys are intelligent, talented and are not afraid to roll their sleeves up," Bayly said. "Aaron has been putting the hard yards in at the kitchen and has slotted right into the team. He is already showing a lot of promise."
Freeman was thrown straight into the deep end on day one.
"My first night was a fully booked service, a critic from a newspaper was also coming in and there was also a table of nine vegans. I knew it was going to be the service from hell."
By his third day, he felt more settled. "No one can understand the ultimate endurance sport that working in a good kitchen is until you have done it."
• The My Kitchen Rules semifinals screen on TV One at 7.30pm tonight and Tuesday. The final is on Wednesday night.