UK Telly show. 2 contestants join 2 Celebrity Chefs, 1 contestant per chef. The 2 contestants bring a selection of ingredients with them. The Chefs then compete to cook a wonderful meal within a time limit, aided by the contestants.
This show is quite popular in the UK because of the banter between the presenter, Fern Britton, and the chefs. It is also quite humble - the food is prepared quickly and there isn't any snobbery, unlike other UK cooking shows like Masterchef. There's also a Celebrity version, where different Telly stars join the chefs.
Apparently there is an American version called Ready Set Cook