Chinese Spicy potato

Name: Chinese Spicy potato
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Asian
Ingredients: 500 g potatoes (cut into 0.5cm slices); 1 L oil (for deep frying and stir frying); 2 spring onions (cut and separate the white and green parts); 3 clove garlic (chopped); 3-4 slices ginger; 2 fresh chilli pepper (cut into pieces); 1 tablespoon sesame oil; 1/2 teaspoon sugar; 1 tablespoon oyster sauce; 2 tablespoon rice wine; 1 tablespoon soy sauce; 1 tablespoon chili flakes; 3 tablespoon toasted sesame seeds; 1/1 teaspoon black pepper powder; 2 teaspoon cumin powder; 1/2 cup chopped coriander