Start by cutting the chicken breasts into bite-sized pieces. Then, sprinkle the cornstarch over the chicken. Toss to coat each piece evenly. The cornstarch will provide a crispy texture.
In a large pan or wok, heat the neutral oil over medium-high heat. You want the oil hot enough to fry but not smoking. This ensures the chicken will crisp up beautifully.
Carefully add the chicken to the oil. Fry in batches to avoid overcrowding. Cook until golden brown on all sides, about 5-7 minutes. Remove the chicken and place it on paper towels to drain excess oil.
In the same pan, reduce the heat to medium. Add the ginger and garlic, sautéing for about 30 seconds until fragrant.
Now, incorporate the orange juice, zest, brown sugar, tomato puree, chili oil, chili garlic paste, mirin, soy sauce, black pepper, and sesame oil. Stir to combine and let simmer for 3-5 minutes.
Once the sauce has melded beautifully, stir in the cornstarch slurry. This will thicken the sauce slightly, giving it a sticky consistency.
Return the fried chicken to the pan. Toss to coat the chicken pieces in the sauce until they’re fully covered, about 1-2 minutes.
Garnish with fresh orange segments, green onions, sesame seeds, and a sprinkle of red pepper flakes for that extra touch. Enjoy!