In a large bowl, toss the chicken with the cornstarch, salt, and pepper until evenly coated.
1½ pounds boneless, skinless chicken breast, ¼ cup cornstarch, Kosher salt and freshly ground black pepper
In a medium bowl, whisk the sauce ingredients together. Set aside.
½ cup hoisin sauce, ¼ cup low-sodium soy sauce, 1 tablespoon rice vinegar, 2 teaspoons sesame oil, 3 cloves garlic
Heat a large skillet or wok over medium heat. Add in the cashews and cook, stirring often, until toasted and fragrant, about 3-5 minutes. Remove from the pan and set aside.
1 cup raw, unsalted cashews
Add in the oil. Once hot, add in the chicken in a single layer, cooking in batches if needed. Cook until golden, about 3 minutes. Flip and cook until the second side is golden, about 2 minutes.
1 tablespoon vegetable oil
Stir in the green onions, and cook until softened, about for 1-2 minutes.
4 green onions
Stir in the sauce and cashews. Continue to cook until the chicken is glazed. Garnish with green onions and sesame seeds, and serve.
Sesame seeds