How to make oyster sauce?

The production steps of oyster sauce are as follows:

1. After the oyster is cleaned, pry open the shell with a screwdriver and take out the oyster meat.

2. Wash the oyster meat repeatedly with clear water.

3. After cleaning, you can cook. After cooking for about half an hour, remove the oyster meat.

4. Then change the soup in the pot to medium and small fire and stew it for about four hours. Reduce the heat, add a little salt and sugar while stirring the juice, add a little soy sauce to color, and finally add a little wet starch to thicken.

At this time, the real oyster sauce is made.