Preheat oven at 325 F.
Cut stew meat into rather small pieces and roll lightly into the
flour.
Heat oil, then stir fry meat, a little at a time, until
golden.
Do the same with onion and garlic, adding more oil if needed.
Place everything in a 6 - 8 quart deep pan, adding the brown
sugar, 2 tablespoons of vinegar, parsley, thyme, salt and pepper.
Mix.
Add hot broth and beer.
Cover and bake for 2 hours.
Remove pan from the oven, place it on the stove over medium fire,
add balance of vinegar and bring sauce to boiling.
Cover and cook for 15 minutes longer.