Crush the garlic, mix with the oil and wine and coat the meat with the mixture, leave covered in the fridge to marinate for approx. 30 mins. Season the meat.
Oven bake for approx. 25 mins. in the centre of an oven preheated to 180°C.
Chop the tomatoes, mix with the wine and water, allow the tomatoes to soften in the mixture for approx. 30 mins. Place the meat on an oven tray.
Slice the onions. Warm the oil, sauté the onions for approx. 5 mins. Add the tomatoes with the liquid and simmer for approx. 5 mins. Rinse the capers, drain, add and season.
remove the meat, cover with foil, and leave to stand for approx. 5 mins. Carve and serve with the vegetables.