[Super Serious] Does Devos Lemmes put the wrong n in brackets for their Mayon(n)aise?

It should be "Mayo(n)naise" right? Because "Mayon-aise" makes no sense, if you split it it's "mayo-naise" not "mayon-aise" in Dutch. So in that sense it's the first "n" that's not there in Dutch, not the second.