Kung Pao chicken, also transcribed as Gong Bao or Kung Po, is a spicy, stir-fried Chinese dish made with chicken, peanuts, vegetables, and chili peppers. The classic dish in Sichuan cuisine originated in the Sichuan Province of south-western China and includes Sichuan peppercorns. Although the dish is found throughout China, there are regional variations that are typically less spicy than the Sichuan serving. Kung Pao chicken is also a staple of westernized Chinese cuisine.
The original Sichuan version uses chicken as its primary ingredient. In this original version, diced chicken is typically mixed with a prepared marinade. Shaoxing wine is used to enhance flavor in the marinade. The wok is seasoned and then chili peppers and Sichuan peppercorns are flash-fried to add fragrance to the oil. In Sichuan, or when preparing Sichuan-style Kung Pao chicken, only Sichuan-style chili peppers such as facing heaven pepper or seven stars pepper (Chinese: 七星椒; pinyin: Qīxīngjiāo; Wade–Giles: Ch'i1-shing1-chiao1) are used. Smaller, thinner Sichuanese varieties may also be used. The most important component of the dish is handfuls of Sichuan peppercorns. It is these peppercorns that give authentic Kung Pao chicken its distinctive numbing flavor. Use of hot and numbing flavor (Chinese: 麻辣味型; pinyin: Málà wèixíng; Wade–Giles: Ma2-la4 wei4-hsing2) is a typical element of Sichuan cooking. Then the chicken is stir-fried and vegetables, along with peanuts, are added. Kung Pao chicken starts off with fresh, moist, unroasted peanuts or cashew nuts. These are often used instead of their pre-roasted versions. The peanuts or cashew nuts are dropped into the hot oil at the bottom of the wok, then deep-fried until golden brown before the other ingredients are added.
Variants exist that use other meats in place of chicken, such as "Kung Pao shrimp" (Chinese: 宫保虾) and "Kung Pao frog legs" (Chinese: 宫保田鸡)