1 kg of pork loin, cut into thin slices3 onions or more, chopped6 garlic cloves, chopped2 tablespoons of tomato paste8 1/2 fluid ounces of white wine1 beer3 tablespoons of olive oil1 Beef Knorr (beef stock cube)1 bay leafPiri-piri sauce or Tobasco sauce (to taste)Salt (to taste)