There's beet in the salad and the borscht, too. This Eastern European cafe serves more than a dozen superpremium varieties made by Jane's Ice Cream of Kingston, New York, including the bespoke number seen here (small cup, $3). During recipe development, unmitigated beet proved too sweet, and as churned today, the ice cream is tweaked with dill. Next flavor on the docket: apricot orange blossom.
Previously I wrote that this is the only Brooklyn business that carries Jane's. The comment below (thanks, Peter!) points out another place to find them, at least in sandwich form.
Kitchen at Cobble Hill (formerly known as Karloff)
254 Court St. (Kane-Degraw Sts.), Cobble Hill, Brooklyn