Step 1: Coat the Chicken: In a bowl, whisk together 1/2 tbsp oil, oyster sauce, and cornstarch to make a thick paste. Add the chicken pieces and toss to coat completely. Set aside.
Step 2: Make the Sauce: In a separate bowl, simply stir together the soy sauce, water, rice vinegar, sugar, sesame oil, red pepper flakes, ginger, and garlic. (Pepper flakes are optional if you don’t like spice)
Step 3: Sear the Chicken. Heat the remaining 1 tbsp oil in a large skillet over high heat. Add the coated chicken and sear until golden brown and cooked through (about 5 minutes). Remove the chicken and set it aside, covered, to keep warm.
Step 4: Sauté the Veggies and Cashews. Add the bell pepper and onions to the pan and cook until the onions start to soften, around 2-3 minutes. Then, toss in the cashews and cook for another minute.
Step 5: Bring it Together. Pour the prepared sauce into the pan with the veggies and cashews. Once it starts bubbling, return the cooked chicken to the pan. Reduce heat to medium-high and simmer for a couple of minutes, letting the sauce thicken and coat everything… I usually do a cornstarch slurry.
Step 6: Serve Up! Serve your delicious Cashew Chicken over white or brown rice, garnished