The search begins for America's best amateur cook.

The search continues for America's best amateur cook.

The remaining hopefuls compete for a spot in the top 18.

The top 18 are forced out of their comfort zone.

For their third Mystery Box Challenge the contestants had to cook a T-bone steak with other ingredients.

Team challenge: split into 3 teams, each with a food truck serving a different style of food, to sell to visitors at Venice Bench. Earn the most to win.

Graham Elliot takes on the mystery box.

For their 5th Mystery Box Challenge, the contestants had 60 minutes to create a dish using a live sea urchin, also known as uni. But first Ramsey showed the contestants had to humanely remove the sea urchin from it's shell.

For their 4th team challenge the contestants had to cook steak and two side dishes for 101 cowboys and cowgirls.

A guest judge surprises the contestants with a letter from their loved ones and were required to cook with southern ingredients.

The eliminated contestants return to compete for a "second chance" white apron.

The final seven contestants had 45 minutes to create a dish using live Santa Barbara spot prawns.

For their 5th team challenge the contestants were divided into two teams and had to cook one dinner service at Hatfield's restaurant.

The last Mystery Box Challenge, the contestants were allowed to cook a dish they can include if they were given the opportunity to publish their own cookbook. They can use any ingredients, cook in any style use any technique they preferred.