I've been brewing beer for awhile and have never made a wine. A inexperienced buddy of mine is asking me for directions on how to make a cheap/cheezy/easy sparkling wine. (it doesn't need to taste phenomenal, just tolerable(it's more of a first time experiment)
I told him about as basic as you can get is, grape juice, champagne yeast, and sugar.
Since I've never done this, I need to know the water to juice ratio, and how much sugar to add to yield an approx 15-17ABV sparkling wine. it'll be fermenting in a 5-6 gal glass carboy.
Thanks!