Place the meat in a bowl and cover with cold water. Rest for half an hour so the little bones and/or blood in the meat comes out.
Rinse the meat under flowing water and pat dry with paper towel.
Place the meat in a large pot.
Also add the garlic cloves and the black peppers.
Cover the lid and cook over low heat for about 2-3 hours until the meat almost falls of the bones.
The meat will first leave its water and then will absorb it back.
If by the time the meat absorbs back its own water the meat is not well done, add about 100 millilitres of warm water and continue to cook until it is ready.
When ready and the water is all absorbed add a tablespoon of butter and salt to taste. Gently sauté the meat so it is slightly roasted on all sides.
Sprinkle with thyme and enjoy.