Spicy Hot Prawns

Serving

350g whole tiger prawns, still in their shells 1/2 tsp salt 1/4 tsp pepper 2 tbsp oil 1/2 tsp sesame oil 1 tsp chopped ginger 1 tsp chopped shallots 1 tsp chopped garlic 3 dried chillies 3 bird’s eye chillies, chopped 1/2 onion, cut into wedges