Start by marinating the diced chicken. In a bowl, combine the egg white, sea salt, and cornstarch. Add the chicken pieces, stirring until they are well-coated. Let this sit for about 15-20 minutes. This step locks in moisture and enhances the texture.
While the chicken marinates, mix the sauce ingredients in a separate bowl. Combine the chili paste, soy sauce, sherry cooking wine, rice vinegar, sugar, chicken broth, cornstarch, and sesame oil. Stir until everything is incorporated. Set it aside for later.
In a large skillet or wok, heat two tablespoons of peanut oil over medium heat. Once hot, add minced garlic, ginger, and dried red chili peppers. Sauté this mixture for 1-2 minutes until you can smell those wonderful aromas wafting through the air.
Add the marinated chicken to the skillet. Cook for about 5-7 minutes, stirring occasionally. You want the chicken to be golden brown and cooked through.
Next, toss in the sliced green onions, diced water chestnuts, and roasted peanuts. Stir-fry for an additional 2-3 minutes. This brings a great crunch and freshness to the dish.
Pour the prepared sauce over the chicken and vegetable mix. Stir well to coat everything evenly. Cook for another 2-3 minutes, allowing the sauce to thicken and cling beautifully to the mixture.
Remove from heat and garnish your Kung Pao Chicken with fresh cilantro. Serve it hot over a bed of fluffy rice or alongside noodles. Enjoy every bite of your homemade masterpiece!