The commercial recipe for Cantonese-style lo mein sauce is as follows:

1. Combine bean paste, light soy sauce, dark soy sauce, balsamic vinegar, sugar, minced garlic, sesame paste, chili oil and other ingredients Place in a bowl and mix well.

2. Add appropriate amount of water and continue to stir evenly until the juice becomes smooth.

3. The proportion of various materials can be adjusted appropriately according to personal taste to achieve the best taste.