Combine ingredients for the marinade including soy sauce, Shaoxing wine, granulated sugar, black pepper, ginger, garlic cloves, and chopped scallions. Add chicken to marinade, tossing to coat. Let sit for 30 minutes.
Combine chopped cilantro, scallion, garlic, Thai chile, soy sauce, sugar, water, lime juice, rice vinegar, sesame oil, and Sichuan pepper in a medium bowl. Let sit for 10 minutes.
Heat enough oil in a large pan over medium-high to come up ½ -inch. Dredge the marinated chicken in the corn starch, shaking off the excess. Shallow fry chicken until golden brown, about 5 minutes. Remove from heat and drain on a paper-towel-lined plate. Repeat with the remaining chicken. Drizzle sauce on top and serve immediately.