Croissant roll. Not to be confused with Dunkin Donuts's croissant donuts which while a complete calorie bomb, may well be one of the yummiest pastries ever invented.
But we must recall that the "additional IS" doesn't refer to asking a question....YET. (Can we imagine someday "Hey buddy, what is is the way to get to the beach from here"?)
It also depends on your skill at speaking French. "Kwasson" is closer to the French pronunciation. If you can't pronounce that, just stick to English and call it a crescent roll.
Speaking of redundancies, I have got to mention this: "We've got to stop saying 'have got'…. Either "I have to stop saying this" or, God forbid, "I got to stop saying this"—
I've been doing "I have"for years. Here's one for us all....in prep school during a soccer match, our goalie once called out "I HAVE IT!" (not I GOT IT!).