In the same pot, brown the onions in the remaining butter. Add the garlic and cook for 1 minute. Deglaze the pot with the broth and vinegar. Add the meat. Bring to a boil, cover and bake for 2 hours or until the meat is fork tender. Remove from the oven. Remove any excess fat from the meat, shred and combine with the warm sauce. Set aside.
Gnocchi
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