Can honey be made without bees?

You could collect nectar and evaporate most of the water from it and you would have something not unlike honey, but you would be missing one important stage. When bees initially swallow the nectar it includes a little of their saliva, the enzymes in which break the more complex sugars in nectar down to glucose and fructose, so your 'concentrated nectar' would not be the same as true honey.