Marinate the Chicken: In a medium bowl, whisk together 1 egg and 1 tbsp reduced sodium soy sauce. Add the seasonings: 1/2 tsp ginger powder, 1/2 tsp garlic powder, 1/2 tsp onion powder, 1/2 tsp paprika, and 1/2 tsp cayenne pepper. Mix until combined. Add 1 lb sliced chicken thighs into the marinade and ensure they are well coated. Cover and let the chicken marinate for at least 30 minutes, or overnight if time allows, to absorb the flavors.
Prepare the Sauce: In a separate bowl, whisk together 1/4 cup low sodium soy sauce, 1/4 cup ketchup, 3 tbsp honey, 2 tbsp oyster sauce, 1 1/2-2 tbsp Asian chili sauce, 1 tbsp black vinegar, 1 tbsp toasted sesame oil, and 1 1/2 tsp cornstarch until smooth and combined. Set this aside as you prepare the other components.
Breading the Chicken: In a shallow dish, mix together 1/2 cup flour, 1/4 cup cornstarch, and 1/2 tbsp chili powder. Once the chicken has marinated, remove it from the bowl and dip each piece into the flour mixture, shaking off the excess. This will create a crispy coating when fried.
Frying the Chicken: Heat canola or vegetable oil in a deep frying pan over medium-high heat. Once hot, carefully add the breaded chicken pieces in batches. Fry until golden brown and crispy, about 6-8 minutes total. Use a slotted spoon to remove the chicken and place it on a paper towel-lined plate to absorb any extra oil.
Toast Cashews and Stir Fry Vegetables: In the same pan, reduce the heat to medium and add 1 cup unsalted cashews. Stir frequently until golden and fragrant, about 3-4 minutes. Remove the cashews and set them aside. In the same pan, pour in 1 tbsp vegetable or peanut oil. Add 1/2 sliced white onion, 1 sliced red bell pepper, 1 tbsp grated ginger, and 6 minced garlic cloves. Stir-fry for 4-5 minutes, until the vegetables are tender but still crisp.
Combine and Serve: Retrace your steps by adding the prepared sauce to the vegetables in the pan. Stir and simmer for about 2-3 minutes, allowing the sauce to thicken slightly. Then, add the fried chicken and toasted cashews, tossing everything together to ensure even coating. Cook for an additional minute to meld the flavors. Serve hot, garnished with sesame seeds and chopped green onions.