Step 1

Cut the chicken breast into 1" dices. Place them in a large mixing bowl and add all the seasoning ingredients, salt, sugar, white pepper, sesame oil, garlic paste, corn starch, and baking soda. Mix well, set aside, and marinate for 15-30 minutes. ( If you have more time you can leave it for 1 hour. )

Step 2

In a small saucepan, combine all the sweet and sour sauce ingredients, ketchup, vinegar, sugar, tomato puree, water, corn starch and salt. Mix well until corn starch dissolved, then turn on the heat to low-medium. Stir continuously until the sauce is thicken to desire consistency. Turn off the heat and let it cool down.

Step 3

Combine plain flour, corn starch, baking soda, and salt in a large bowl. Pour the cold water in, whisk well and make it into smooth batter. ( The batter should be medium thick. Add more water if needed. )

Step 4

Add ½ cup of corn starch in the chicken marinade, coat each chicken piece with the corn starch. Then dip into the batter and turn to coat evenly.

Step 5

Fry the battered chicken pieces with pre-heated high heat oil for 2-3 minutes until light brown. ( about 350° F/ 180° C ) Remove from oil and set aside for 4-5 minutes. Repeat the process to remaining chicken pieces.

Step 6

Then reheat the oil back to 350° F/ 180° C , fry the chicken 2nd time for 2-3 minutes until crispy golden brown. Remove from oil and transfer to cooling rack or paper towel.