The story behind Chicken Tikka Masala was a bloke in london years ago loved his local restaurants Chicken Tikka but one night told the chef that it was a shame it was so dry and would be nice with some sauce.
The chef being an accomodating man said he'd see what he could do, went into the kitchen, looked around and found a tin of Heinz tomato soup.
This he threw in a pan along with some spices and voulla, Chicken Tikka Masala.