This
looks like a standard shrimp with vegetable (in this case, sugar snap peas)
stir fry. What makes this dish different and tasty, is black vinegar. The black
vinegar adds a slightly sour taste to the dish, which is balanced by the hoisin
sauce, which adds some sweetness. However, this is not a sweet and sour dish,
but if you increase the quantities of the previously mentioned ingredients, it
can be.
Enjoy!