You could get two bottles with carbonator caps attached to each other with tubing, fill one with apple juice and the other with yeast and sugar water.. If the yeast produce enough CO2, it could carbonate the apple juice without getting any alcohol in it. Might add some odd flavors, though.
No idea how well that would work, but it seems like it could. Also not sure what kind of gravity you'd need in the sugar water to produce enough CO2 so that the volume would be high enough throughout the entire system. I may do a little experimenting with it at some point, though.
ETA: Even better, use beer in the other bottle and add enough priming sugar to carb both. You get beer, she gets alcohol free carbed cider.
No idea how well that would work, but it seems like it could. Also not sure what kind of gravity you'd need in the sugar water to produce enough CO2 so that the volume would be high enough throughout the entire system. I may do a little experimenting with it at some point, though.
ETA: Even better, use beer in the other bottle and add enough priming sugar to carb both. You get beer, she gets alcohol free carbed cider.
