Preheat oven to 140ºC/275ºF/Gas 1. Allow the meat to come to room temperature. Pat dry with kitchen paper. Season with salt and pepper.

Heat the oil in large flameproof casserole pan, on a high heat. Sear the meat until nicely browned on all sides. Remove from the pan and leave to the side. Add onions, carrots and sugar, fry for 4-5 minutes on a medium heat.

Add tomato puree to the pan and fry for a further 3-4 minutes. Return the seared meat to the pan and add wine. Bring to the boil. Cover and place in the oven for 4-4 ½ hours. Take the casserole out of oven. Remove the lid and reduce the sauce to a smooth consistency. Season to taste with a little salt and pepper. Cut the meat into slices and arrange with the sauce on preheated plates.

Serve with couscous or pan fried potatoes.