Heat in a large pot or Dutch oven:
Brown in batches:
Transfer to a platter and set aside. Drain off any fat and add to the pot:
When the butter has melted, add and cook, stirring, until softened, about 5 minutes:
Add the browned meat, along with:
Bring to a boil, then reduce to a simmer, cover, and simmer until the meat is fork-tender, about 2 ½ hours. Transfer the meat to a plate, discard the bay leaf, and thoroughly skim off any fat. If desired, reduce the braising liquid over high heat until it has thickened, or mash together with a fork in a small bowl:
Whisk the mixture into the braising liquid. Season to taste with:
Return the meat to the sauce and heat through. Serve over:
Garnish with: