set in meat, put layer of onions on top (if you are doing 2 briskets you can both in the pot if they fit)
pour in the beef broth and port
fill the rest of the pot with wine until meat is covered.
cover and simmer for at least 7 hours (could be up to 9 hours), turning over meat every 45 minutes rearranging onions as much as possible make sure the lean the section is always under liquid
add more wine if needed
when the meat is very tender and almost falling apart, remove the brisket
carefully remove the fat on the one side of the brisket meat
strain out the onions, and reduce the liquid by half, so the flavor is rich and concentrated and the liquid is thickened
slice against the grain and serve with the burgundy onion au jus and buttered egg noodles