Water wine is basically what's been stated above. Can also be related to Skeeter Pee, minus 2 of the 3 bottles of RealLemon
Enough sugar for 11-12% alcohol
Enough acidity for healthy fermentation
Yeast nutrient & energizer
A clean-fermenting yeast
Tannin/banana/golden raisins if you want some body in it
Ferment as usual, degas and clear.
I tend to make my wines with more fruit per gallon than most would attempt, and i pray not to have to use water wine to top off (i try to make 1-gallon extra for every 5-gallon carboy, for topping off) but i've kept it around incase i need it and its paid off