I made a delicious Blueberry Cider 1 gallon test batch and now I'm on a full 6 gallon batch.
The recipe was pretty simple:
1.5 gallons Oceanspray Blueberry
2.5 lbs Dextrose
Apple Juice to fill 6 gallon carboy
Lavlin EC-1118 Champagne Yeast
I sweetened it to a OG of 1.088 and it fermented to 1.00 for a ABV of 8.62%, I backsweetened half with more sugar and juice to a gravity of 1.015 and left the other half dry, both were good depending on your preference. I'm sure you could do the same thing with lots more sugar and get it into a wine strength OG and it would still go to dry.