Chinese Beef Tomato Stir-fry. Tender flank beef steak cooked in a delicious, sweet tomato stir fry sauce with aromatics. A fantastic main dish ready in just 30 minutes!
Slice flank steak against the grain into ¼-inch thick pieces. Transfer sliced beef into a large bowl. Mix in Beef Marinade ingredients as listed and combine well. Marinate for at least 15 minutes or overnight for best results.
In a small bowl, combine together cornstarch and cold water to make your cornstarch slurry. Set aside.
Heat vegetable oil in a large pan or wok on medium heat. Fry marinated beef and quickly spread it evenly across the pan to cook. Cook until it’s 75% cooked or mostly brown.
Next add garlic, onions, ginger, ketchup stir fry together. Cook until onions are softened, about 1 minute.
Add cornstarch slurry, followed by tomatoes and mix until everything is combined. Allow the sauce to simmer and thicken uncovered, about 2 minutes.
Gentle mix in sugar to avoid breaking the tomatoes apart. Garnish with green onions and enjoy!
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