Evaporated cane juice should mean a product like panela or rapadura [1] -- a dark brown unrefined (non centrifugal) sugar containing all of the molasses from the original sugar cane. Unfortunately, in the US, there is no legal constraint on how the term is used, and so when you see it on packaging, you should read it as "sugar", or, perhaps more optimistically, "brown sugar".
[1]: https://en.wikipedia.org/wiki/Panela