Cook onions, shallots, garlic in butter, seasoning w/ salt and pep until desired softness (10-30 mins) can go until soft or browned, browned is better.
Add wine and a little bit of Worcestershire sauce to pot and scrape up sticky stuff on bottom of pan. Bring to boil and let reduce, 5-10 mins
Add broth and more Worcestershire sauce. Bring to boil and simmer for until done, adding more Worcestershire sauce if needed.