Ingredients: five tablespoons of water, four tablespoons of ketchup, three tablespoons of white vinegar, two tablespoons of sugar, one tablespoon of cornstarch, a number of oil

Special Steps:

Step 1: Pour all the ingredients, except for the oil, and mix well.

Step 2: Pour in the oil at 50 percent heat and mix the sauce.

Step 3: Simmer over low heat until thickened.

Step 4: In the process of making, vinegar will inevitably evaporate, in the pot before sprinkling a little bit of vinegar will increase the aroma of vinegar, taste better oh.

Step five: out of the pot.