Dates are loaded with sugar. But if you ever have access to figs, those have more sugar than one can ever imagine. I added dried dates in a fig wine and it added a nice golden finish to the wine, it now looks like sherry. I have several pounds of Turkish dates that are fried and I have vacuum packed them and stashed them in the freezer, and I plan on making a batch of wine using a combination of Flor Sherry and Champagne yeasts...just to experiment. Another winemaker cautioned that if you do opt to use dried dates to be careful because depending on the storage of the fruit you may end up with an oxidized wine.
Motto: quel che sara sara