*roquette.
EDIT: actually, on this, had lunch at the Mt. View Hotel on Bridge Rd. in Hawthorn yesterday and they spelt rocket on the menu like this, i thought it meant starch or maize extract or something. somebody please explain.
Can be spelt either way. Roquette is the original French terminology which has been adapted to Rocket in more recent times. Either way is correct.
I guess it is similar to raquette which was adapted to racquet and even in recent times I have seen apadted to racket .