This is another of those fine forgotten libations from before the Civil War that deserves to be revisited, especially during the holidays. I think I have counted a half-dozen sangarees mentioned in the short stories of Nathaniel Hawthorne!
You can make a whiskey or rum or gin sangaree just by substituting the base spirit, but I think that brandy or cognac go best with the port.
A sangaree is just some spirit sweetened with a little sugar and mixed 2:1 with port. It has no lemon or lime juice and no bitters, so it's on the sweet side, but it's a fine treat after Thanksgiving dinner or at Christmastime!