2Rinse the tomatoes, scald them with boiling water, peel them off and cut them into large pieces.
3Peel and cut potatoes.
4Pig ribs boil water, remove blood foam.
5Rinse ginger slices and spices for later use.
6Heat the frying pan, add 50g cooking oil, add ginger, spices and stir-fry.
7Add the spareribs and stir-fry until the water is removed.
8Add tomato sauce 150g and stir well.
10Add water. Its better to have no food. Cover and simmer over medium heat.
11Add potatoes in half an hour.
12Cover and simmer for 20 minutes. Then add proper salt. The sweet and sour tomato and potato rib soup is ready.
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