Since it's a root, vodka (which is often made from potatoes).
Are people really so namby pamby in the 24th century that no one is brewing their own below decks? A little pruno in private quarters? I think the holodeck killed the fun in that, no reason to be naughty and ingenious when you can go to Risa on your lunch break.
"Look look, I made a still and brewed this disgusting yet agreeably potent alcohol from kitchen scraps!"
"Uh huh.. and I'm off to Wrigley's Pleasure Planet for 12 course sex frolic."
I bet luddites bemoan how the holodeck has sapped people of creative impulses.