To make goulash with tomato paste sauce, fry the pork. To do this, heat a frying pan, pour in vegetable oil and put the pieces of meat. Add salt and pepper. Fry until golden, about 10 minutes, stirring occasionally.
Simmer the meat. To do this, place the fried pieces in a cauldron and pour hot water over them so that the meat is completely covered. Bring to a boil. Reduce the heat and then add the bay leaf. Simmer under the lid for another 10 minutes.
In a separate frying pan, greased with vegetable oil, fry the onion until golden. This should take about 5 minutes.
Make the gravy. To do this, add flour to the onion and mix well. Pour in water and tomato paste. Add sugar. Stir and simmer over low heat for 5 minutes.
Now move on to the final stage of cooking. To do this, pour the gravy into the pan with the meat. Cover with a lid and simmer for 40 minutes on low heat.