01 -
Chop the chicken breast into bite-sized pieces. Toss into a big bowl and mix in the marinade ingredients: sugar, sesame oil, salt, white pepper, garlic paste, cornstarch, and baking soda. Let it rest for 15-30 minutes, or up to an hour if you're not in a rush.
02 -
Stir together the sauce ingredients—ketchup, vinegar, sugar, tomato paste, water, cornstarch, and salt—in a small pot. Warm it over medium-low heat, stirring until it thickens to your liking. Take it off the heat and set aside for later.
03 -
Combine flour, cornstarch, baking soda, and salt in a big bowl. Slowly pour in the cold water and whisk until it's smooth. Adjust the thickness with a splash of water if needed.
04 -
Coat the marinated chicken pieces lightly with some cornstarch. Dunk each piece into the batter and make sure it’s evenly covered.
05 -
Heat up the oil to 350°F (180°C). Fry a few chicken pieces at a time for about 2-3 minutes, until they've just turned a light golden color. Take them out and let them rest for 4-5 minutes while you cook the rest.
06 -
Bring the oil back up to 350°F (180°C) and fry the chicken again for another 2-3 minutes until they’re crispy and beautifully golden. Place them on paper towels or a cooling rack to get rid of extra oil.
07 -
Pile the crunchy chicken pieces onto a plate and serve alongside the sweet and sour sauce. Best enjoyed fresh!