After seven years of cooking for his fiancée, surfing champ Layne Beachley, Kirk Pengilly is finally getting the recipe right.

As the INXS rocker begins a stint competing on the highly anticipated Celebrity MasterChef, the happy couple reveal their secret ingredients for a good relationship, and sharing the household chores is at the top of the list.

"I do most of the cooking and most of the washing," Kirk says. "I'm a keeper!"

Doing laundry duty is a far cry from Kirk's former life as a rock 'n' roll superstar, but since meeting Layne, he's happy to settle down and be a house husband.

"She's really flat out with all sorts of things," Kirk says. "So it's cool — I'll just stay at home and cook."

Kirk and Layne announced their engagement in November last year, but since then they have struggled to seta date for the nuptials.

"We do discuss it," Kirk says. "We've got an idea of where we want to do it and now we have to really nut out whether it's going to be big or small. We're both so busy, so it's really hard to even plan that far ahead."

But while the couple are waiting to wed, Kirk is happy to look after Layne, cooking up feasts that conform to her list of banned foods, which includes red meat, dairy products, wheat, gluten and pasta.

Despite the limitations of Layne's diet, Kirk still cooks up a storm. "I make a lot of stir-fries," he says, instead of the curries he used to love.