The hunt for Celebrity MasterChef 2011 continues, as four new celebrity contestants join the competition. TV presenters Tim Lovejoy and Aggie MacKenzie take on their first gruelling challenges, alongside actresses Margi Clarke and Shobu Kapoor.

Their first challenge is the Skills Test, as the celebrities are asked to prepare a crab ravioli dish with sage butter sauce. With the clock ticking and the pressure on to impress the judges, can the celebrities deliver?

For the second challenge, the contestants are tasked with a mushroom risotto in the Basic Recipe Test, before being faced by the Mystery Box task for their third and final challenge of the day. In a test of both their culinary ability and their intuitive creativity, the celebrities must prepare a dish using mystery ingredients, including octopus. But with this unusual ingredient integral to their dish, will the celebrities sink or swim? Show less