Overview: It is the last of the heat weeks. The final set of ten chefs plucked from kitchens across Britain arrive at the MasterChef kitchen to face their first test. They have just one challenge that will demonstrate to Monica and Gregg whether they have the necessary skills and palate to cook for Monica's legendary boss Michel Roux Jr. In the Invention Test, the ten chefs have to grapple with their nerves as they have only 50 minutes to create a dish from just six ingredients: strawberries, a bar of white chocolate, an aubergine, tofu, a bunch of basil and a bag of St George's mushrooms. They must prove their skill, palate and creativity. The pressure is on if they are to impress Monica and stand a chance of cooking for Michel. For now, they are all safe, but over the next two nights each of these ten chefs must return to face on more test before Monica and Gregg decide who will win the honour of cooking for culinary giant Michel Roux Jr.