I totally remember "yum-yum" Italian ices. I also lived in North Jersey and used to go to a store called Kaye's Nut Shoppe, located on Central Avenue in Jersey City.
There was nothing like the yum yum vanilla ice he made. And all of his other ices were by far, the best I have ever had too. Wish I could find some of his recipes. I am dying to have it again. But all the searching has led to nothing. Can't even find a place that comes close to matching it. I sure hope he didn't die and not leave his recipes for someone else.
If anyone remembers this place or these ices, please, please, please post for me now !!