Step 1: Cut the celery into about 4 cm long.
Step 2: Cut the chicken thighs into pieces, then add moderate amount of salt, sugar, soy sauce and cornstarch to marinate for about ten minutes.
Step 3: Drain the celery first.
Step 4: Turn on medium heat and add olive oil to the wok. Put the chopped green onion, minced garlic and ginger slices into the hot wok and fry until golden brown.
Step 5: Add in chicken pieces and fry until medium, then pour in celery and fry until cooked.
Step 6: Add cashew at the end and serve.