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1
Prepare the marinade: In a large bowl, combine the soy sauce, rice wine, and egg whites. Coat the chicken to the marinade mixture and let sit for 10 minutes.
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2
Prepare the sauce: In a small bowl, combine the chicken stock, tomato paste, sugar, soy sauce, rice vinegar, hoisin sauce, chili paste, sesame oil, sugar, and the 1 teaspoon of cornstarch. Stir until the sugar and cornstarch are dissolved. Set the sauce aside.
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3
In a large bowl or deep plate, toss the 1 1/2 cups cornstarch with the salt and pepper. Coat the marinated chicken in the cornstarch and shake off any excess before frying.
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4
Heat the 3 cups of peanut or vegetable oil in your wok until it registers 350u00b0F on an instant-read oil thermometer. Working in 2 or 3 batches, add the first batch of chicken cubes and fry until golden brown on the outside and cooked through, about 4 to 5 minutes. Remove the chicken with a slotted spoon and drain on paper towels. Repeat with the rest of the chicken.
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5
Drain the oil into a heatproof container and save for discarding. Wipe the wok with a paper towel to remove any brown bits, but don't wash.
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6
Reheat the wok or skillet over medium-high heat. Add another 1 tablespoon of oil and swirl to coat the base and sides. Add the dried chilis and garlic to the wok and stir-fry until just fragrant, about 20 seconds. Pour in the sauce mixture and stir until thickened, about 1 to 2 minutes.
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7
Return the chicken to the wok and stir well to coat with sauce. Transfer the chicken to a serving dish.
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8
Garnish with white sesame seeds and scallions. Serve with white rice and vegetables.
