I use Mayouyu to make sweet and sour fish for your reference.
【Sweet and sour fish】
[Ingredients]: 1 fish, sugar, tomato paste, oil, ginger slices, cooking wine, salt
[Specific method]: 1. First clean the internal organs, scales, gills and other aspects of the fish and drain the water. Spread a thin layer of salt and cooking wine on the body of the fish, put the ginger slices into the fish belly and the surface of the fish, and marinate for 10 minutes to remove the smell.
2. Remove the ginger slices from the fish and use kitchen paper to absorb the moisture on the surface of the fish. Then use a knife to cut on both sides of the fish, every 1 cm or so, it can be an oblique knife, a straight knife or a slice knife, but it cannot cut the main bone. Then coat the fish with a layer of cornstarch.
3. Put oil in the pot, the amount of oil is slightly more than when frying the fish, when the oil temperature is burned to seventy percent hot, put the starched fish into the pan and fry it, pay attention to the fire, fry the whole body of the fish, and fry until the whole body of the fish is golden brown.
4. This is sweet and sour fish without vinegar, with only tomato paste, sugar and a pinch of salt. Leave a little oil in the pan, add tomato paste and sugar to a bowl, about a ratio of 4:1 (e.g. 40 grams of tomato paste to 10 grams of sugar), then add a pinch of salt and half a bowl of water, the amount of salt is less than 1 gram. Mix the sauce evenly and pour it into the pot, turn on low heat until the sauce is thick, then turn off the heat.
5. Put the fried fish into the boiled sauce, let the fish be coated in tomato sauce, and then it can be out of the pan.
A sweet and sour sweet and sour fish is ready, colorful, crispy on the outside and tender on the inside, isn't it very simple? If you like to eat sweet and sour tastes, you can try to make it, super rice.
This is a sweet and sour fish without vinegar, and I think the sweetness and sourness are just right. The ratio of sweetness and sourness depends on personal preference, if you feel that the sourness is not enough, you can add white vinegar, if you feel that the sweetness is not enough, you can add more white sugar, and adjust it to suit yourself.