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Combine all the listed ingredients (thick soy sauce, light soy sauce, oyster sauce, water, sugar, onion oil, sesame oil, salt, and white pepper) into a medium-sized pot.

Place the pot over medium-high heat and bring the mixture to a rolling boil, stirring occasionally to dissolve the sugar and combine the ingredients.

Once boiling, continue to boil the sauce for 5 to 10 minutes. This helps to meld the flavors and begin the reduction process.

After the initial boiling period, reduce the heat to low and let the sauce simmer gently. Continue to simmer until the sauce has slightly reduced in volume and thickened to your desired consistency. This may take an additional 5-10 minutes depending on your stove and desired thickness.

Remove the pot from the heat. The wanton mee black sauce is now ready to be used or stored. It will thicken slightly more as it cools.


Combine all the listed ingredients (thick soy sauce, light soy sauce, oyster sauce, water, sugar, onion oil, sesame oil, salt, and white pepper) into a medium-sized pot.

Place the pot over medium-high heat and bring the mixture to a rolling boil, stirring occasionally to dissolve the sugar and combine the ingredients.

Once boiling, continue to boil the sauce for 5 to 10 minutes. This helps to meld the flavors and begin the reduction process.

After the initial boiling period, reduce the heat to low and let the sauce simmer gently. Continue to simmer until the sauce has slightly reduced in volume and thickened to your desired consistency. This may take an additional 5-10 minutes depending on your stove and desired thickness.

Remove the pot from the heat. The wanton mee black sauce is now ready to be used or stored. It will thicken slightly more as it cools.
