Spiked Juice

I have fondest memories of drinking Sturm at  Raschhofer Rossbräu, a bar/restaurant I frequented while living in Austria a decade ago, give or take a month.  It’s an effervescent,  not fully fermented red wine, which is cloudy and available only in the autumn.  Federweisser is the general term for this category of quick-fermented grape juice, …