Buy chicken keel its the same as breast but with the centre soft bone. It's alot cheaper compared to chicken breast which has been deboned already. If I'm not mistaken at Tesco chicken keel is usually at RM11/kg and breast is RM17/kg. I dunno about pasar tho but at hypermarket I noticed that's one of the difference. Generally where I live the pasar pagi is more expensive than places like Tesco so I go to my trusty Tesco and stock up in my freezer.