I think blueberries have great potential for Cabernet-like reds. You can mix types, the wild blueberries are small with thick skins, as near to grapes as possible. You can also add oak.
However, according to many, the answer probably is elderberry. Always wanted to try it but I hear horror stories about the sludge left behind.
However, according to many, the answer probably is elderberry. Always wanted to try it but I hear horror stories about the sludge left behind.