1: Slit the chicken drumstick pieces on the sides.
2: Add egg, cornflour and salt. Mix well to coat the chicken pieces.
3: Deep fry the chicken pieces in hot oil for 10 minutes or until cooked through. Set this aside.
4: In a mixer grinder, pulse grind the red chillies and black peppercorns into a coarse mixture.
5: In a hot wok/kadai, add oil and once the oil is hot add ginger, garlic and cook until the ginger and garlic turn golden brown.
6: Add finely chopped onion and cook until the onions turn golden brown.
7: Add soy sauce, vinegar and salt. Mix well and add some water.
8: Add the fried chicken drumstick pieces and the ground chilli and pepper mix.
9: Toss until the pepper sauce coats the chicken pieces. Add spring onions and remove from the heat.