TV Celebrity Masterchef - Season 4 Episode 11 : Semifinal day one Celebrity Masterchef - Season 4 Episode 11 : Semifinal day one 6.1/10 by 13 users The four semi-finalists are sent to some of London's best restaurants to fine tune their individual cooking styles - before coming back to the studio to show judges John Torode and Gregg Wallace exactly what they've learnt. And they must then take on the challenge of being the sole caterers at an exclusive society dinner. Details Casts Posters Images Title Celebrity Masterchef - Season 4 Episode 11 : Semifinal day one Alternative Titles First Air Date 2006-09-11 Last Air Date 2025-12-19 Number of Episodes 333 Number of Seasons 20 Genres Reality, Networks BBC One, Casts John Torode, Grace Dent Plot Keywords , Self - Host / Judge John Torode Self - Host / Judge Grace Dent Episodes List Celebrity Masterchef Season 4 :Episode 1 Knockout rounds 1 & 2 Knockout rounds 1 & 2 2009-06-10 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 2 Knockout rounds 3 & 4 Knockout rounds 3 & 4 2009-06-11 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 3 Quarterfinal one Quarterfinal one 2009-06-12 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 4 Knockout rounds 5 & 6 Knockout rounds 5 & 6 2009-06-17 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 5 Knockout rounds 7 & 8 Knockout rounds 7 & 8 2009-06-18 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 6 Quarterfinal two Quarterfinal two 2009-06-19 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 7 Knockout rounds 9 & 10 Knockout rounds 9 & 10 2009-06-24 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 8 Knockout rounds 11 & 12 Knockout rounds 11 & 12 2009-06-25 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 9 Quarterfinal three Quarterfinal three 2009-06-26 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 10 Quarterfinal four Quarterfinal four 2009-07-01 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 11 Semifinal day one Semifinal day one 2009-07-02 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 12 Semifinal day two Semifinal day two 2009-07-03 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 13 Final day one Final day one 2009-07-08 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 14 Final day two Final day two 2009-07-09 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef. Celebrity Masterchef Season 4 :Episode 15 Series 4, Episode 15 Series 4, Episode 15 2009-07-10 Chef and restaurateur John Torode and food writer and ingredients expert Gregg Wallace search for the country's top celebrity chef.