Step 1: Marinate the prawns with soy sauce, Chinese rice wine, Sesame oil, sugar, white pepper and cornflour and set aside
Step 2: Mix all the seasonings for the sauce in a bowl and set aside
Step 3: Heat some oil in a pan and add half the minced garlic and the marinated prawns. Stir fry for 1min until half cooked and the prawns have turned in colour. Set aside.
Step 4: In the same pan, heat some oil and stir fry the rest of the minced garlic and onion for 1 minute to soften the onion. Add the fresh tomatoes and bowl of mixed seasonings for the sauce. Further cook for 1 min on medium heat.
Step 5: Add the half cooked prawns and stir fry for 2 -3 mins until the prawns are cooked. If the sauce requires thickening, mix 1 tsp of cornflour with some cold tap water in a bowl and add that into the sauce.
Step 6: Sprinkle the dish with some chopped spring onion. Ready to serve with some steamed rice.