(Sweet & Sour Chicken) The famous and delicious sweet and sour chicken with the easiest way

The famous and delicious Sweet and Sour chicken is the easiest way without the ingredients of Khouzabeela
Ingredients:
A kilometer of chicken, cut into small pieces
Marinade for chicken:
A cup of flour
A quarter cup of starch
3 egg whites
Teaspoon baking powder
A teaspoon of salt
From a cup to a cup and a half of cold (hot) water
The sauce:
Half a cup of ketchup
Half regular sugar
One and a half tablespoons of soy sauce
A third of a cup of white vinegar
Vegetables:
Pepper, one color of each color
White onion
salt and pepper as needed
Sesame (optional)
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