Wash the meat, dab dry and season with salt, pepper and herbs all around. Place in a roaster or the fat pan of the oven and bake in a preheated oven (electric cooker: 150 °C/ convection oven: 125 °C/ gas: see
manufacturer) cook for about 6 hours. Peel onions and carrots. Chop 1 onion and 2 carrots roughly. Distribute immediately around the roast. After approx. 4 hours cooking time pour on wine and 200 ml water.
Wash the potatoes and cook in boiling water for about 20 minutes. Drain the potatoes and let them cool down a little. Peel potatoes and cut into pieces. Wash and clean the zucchini, cut in half lengthwise and cut into slices.
Cut the remaining carrots into slices and dice the remaining onion. Peel and roughly chop the garlic.
Heat clarified butter in a frying pan. Fry the potatoes for about 10 minutes while turning them, season with salt. Heat butter in a pot. Steam onion cubes and garlic for about 3 minutes. Add carrots, zucchini and beans, season with salt and pepper and steam for about 6 minutes.
Add the tomatoes, coarsely chop with a spatula, bring to the boil and simmer for about 5 minutes. Season to taste with 2 teaspoons of sugar and salt.
Meanwhile take out the meat and keep it warm. Pour the stock through a sieve into a pot. Add stock, bring to the boil and simmer for about 5 minutes. Season with salt and 1 tsp. sugar. Mix starch with 4 tbsp. water until smooth, stir into the boiling stock and bring to the boil again.
Cut the meat and arrange it on a plate with potatoes and vegetables. Pour some sauce over the meat and add the rest of the sauce.