Stir-fried squid with roasted chili paste (pla meuk pad nam prik paw)

Ingredients

• 350 grams squid, cut into well pieces
• 50 grams spring onion, cut into 1/2 long
• 2 red or yellow chilies, cut diagnally
• 1/2 onion, sliced
• 1 1/2 tsp roasted chili paste
• 1 tsp soy sauce
• 1/2 tsp sugar
• cooking oil
• coriander leaves