Marinate beef with 1 tsp sugar, 1 tsp corn starch, 1 tsp light soy sauce, ¼ tsp garlic powder and ¼ tsp salt. Mix well. Add 1½ tsp oil and mix well again. Set aside for 10 minutes Mixing with hands is the most effective way of mixing
Optional: remove skin of tomatoes by scoring the bottom of the tomatoes with a “+” sign, then submerse them in boiling water for approx. 15 seconds, remove from water and peel off the skin
Cut tomatoes into your desired size I like to cut them into ¾” pieces but note that smaller pieces will breakdown more especially without the skin
Beat 2 eggs and set aside
Prepare slurry with 1½ tsp corn starch and 4 tbsp (60ml) water this amount of water will make it thick, but if you like it saucier, you can use 1 tbsp corn starch with 120ml water for your slurry
Heat wok to high heat. Add 2 tbsp oil and add the beef to the wok. Stir-fry until ground beef has broken down and approx. 70% cooked. Turn down heat and remove beef while leaving some of the oil
Turn heat back up and add tomatoes. Add 1 tbsp Shaoxing wine, 1 tbsp ketchup, 2 tsp sugar, ½ tbsp light soy sauce and ¼ tsp salt. Stir, turn heat to medium-high heat and cover with lid for 3 minutes
Once tomatoes have softened, add the beef back into the wok and mix well
When the beef is cooked, stir the slurry and pour it slowly into the wok. Mix well until thickened
Pour eggs onto the beef and tomatoes. Wait 10 seconds before mixing with a spatula so that the egg has a chance to cook
Slowly mix with a spatula until egg solidifies. Mixing it too quickly will cause egg to break into very small pieces. You typically want egg to be in bite-size pieces
Taste test and make adjustments. Tomatoes may vary in water content, sweetness and tartness. You can add vinegar, sugar, ketchup and or soy sauce to customize taste
Remove from wok and serve on top of white rice