Prawns – 300 g (cleaned & deveined) Garlic – 8–10 cloves (finely chopped) Red chilli (fresh or dried) – 2–3 (finely chopped) or 1 tsp chilli flakes Onion – 1 small (sliced, optional) Capsicum – ½ • Spring onion – 2 tbsp (chopped, for garnish) Soy sauce – 1 tbsp Tomato ketchup – 1 tbsp Vinegar or lemon juice – 1 tsp Salt – to taste Black pepper – ½ tsp Cornflour – 1 tsp (mixed with 2 tbsp)