Beef and tomato – our Chinese fake-away!

Name: Beef and tomato – our Chinese fake-away!
Prep time: 30 min
Cook time: 45 min
Total time: 1 h 15 min
Cuisine: Asian, Chinese
Ingredients: 500 g beef or steak sliced into thin pieces; 1 tbsp cornflour; 1 tsp vegetable oil; ¼ tsp salt; 2 tbsp tomato ketchup; 2 tbsp light soy sauce; 1 ½ tsp sugar; ½ tsp sesame oil; 1 pinch freshly ground white pepper to taste; 3 tbsp vegetable oil; 3 sticks thinly sliced ginger; 1 clove garlic, finely minced; ¼ cup sliced shallot (or red onion); 1 large spring onion, cut into 2-inch pieces at an angle; 4 large tomatoes, cut into wedges; 1 tbsp Shaoxing wine; ½ tbsp cornfour mixed with 1 tablespoon water