Lengua Estofado - beef stew with olives

Lengua Estofado beef stew with olives ingredients: 900g ox tongue 6 tbsp flour 400g tomatoes 200 ml of white wine 1 onion 4 cloves garlic 2 tbsp palm sugar 2 tbsp kecap / soy sauce 1 tbsp vinegar 5 bay leaves 125g mushrooms 225g green olives, pitted 60g black olives, pitted 250ml beef stock 1/2 tsp salt 1/2 teaspoon pepper 4 tablespoons oil Preparation: First cook the tongue until done (pressure cooker 45 minutes), allow to cool and remove the skin/outer layer. Cut the meat into slices. Coat the slices with flour and shake off. Mince the garlic, cut the onion into thin slices and the tomatoes into small cubes. Slice the mushrooms and black olives into thin slices. Heat in a pan the oil and fry the meat for 1 minute per side. Then put the meat aside. Add the onion and garlic and fry gently until soft. Add the tomatoes and wine and mix well. Add the meat along with the kecap and broth and bring to a boil. Add the bay leaves and let it simmer slowly, clovered, until the sauce has halved. Then add the vinegar and bring to a boil. Add the mushrooms, palm sugar and olives and simmer gently for 7 minutes. Stir in the pepper and salt and serve.