>>21435479 (OP)crock pot with a quartered onion and onion soup mix for about 6 hours, shred it or slice it I don't care, french dip sandiwches.
chop into 1" cubes, simmer in a pan for like 5 hours, carne guisada which is like a mexican stew with thick sauce.
Slice against the grain thinly, pan fry for steak and eggs.
I hope this helps