1. There are two ways to make sweet and sour sauce for sweet and sour tenderloin. The traditional sweet and sour sauce is balsamic vinegar and soy sauce, but now it is more popular to add ketchup or ketchup and white vinegar. The sweet and sour tenderloin made in this way is more vivid in color and richer in taste, which is more suitable for modern people's tastes.

2. The cooking sequence of the sweet and sour juice is: first fry garlic, then pour in tomato sauce and sugar, stir until the sweet and sour juice turns red, then pour in cooked sesame seeds and white vinegar, and stir until the sweet and sour juice becomes thick and red, and the fish's eyes are big.

The production of sweet and sour juice must be based on personal taste. The ratio of tomato sauce, sugar and white vinegar is 2: 1: 1.

The difference between tomato sauce and tomato sauce is that tomato sauce is raw and tomato sauce is cooked. If ketchup is used, the amount of sugar should be increased.