Cut the chicken breasts into 1-inch cubes and place in a large bowl. Add the baking powder, garlic powder, white pepper, salt, and cornstarch and stir to combine.
Heat the vegetable oil in a wok or large skillet over medium-high heat. Add the chicken and stir-fry for 5-7 minutes, until the chicken is cooked through.
Add the garlic and stir-fry for 1 minute. Pour in the white wine or chicken broth and soy sauce and stir to combine.
Add the sugar, ketchup, rice vinegar, sesame oil, and red pepper flakes and stir to combine. Simmer for 3-4 minutes, stirring occasionally, until the sauce is thickened.
Stir in the green onions and serve over steamed white rice.
Interesting Facts
The dish is named after General Tso Tsung-tang, a 19th century military leader in the Qing Dynasty.
General Tso's Chicken is a dish of American Chinese cuisine.
The sweet and spicy sauce of the dish is made with soy sauce, rice vinegar, sugar, and chili peppers.