To make Crispy Chilli Beef effortlessly, follow these simple steps:

1. Prepare the Beef: In a bowl, mix the beef slices with garlic powder, salt, and black pepper. Let it marinate for about 10 minutes.

2. Coat the Beef: Place cornstarch in a shallow dish. Dredge the marinated beef slices in the cornstarch until fully coated.

3. Heat Oil: In a large skillet or wok, heat the vegetable oil over medium-high heat until hot.

4. Fry the Beef: Working in batches, fry the coated beef slices in the hot oil until golden brown and crispy. Remove from the skillet and drain on paper towels.

5. Make the Sauce: In the same skillet, add a little more oil if needed, sauté the minced ginger and sliced chilies for about 1 minute until fragrant.

6. Combine Ingredients: Add sugar, soy sauce, rice vinegar, and sesame oil into the skillet. Stir well and let it simmer for a couple of minutes until the sauce thickens slightly.

7. Toss in Beef: Add the crispy beef back into the skillet with the sauce, tossing until thoroughly coated.

8. Garnish: Remove from heat and sprinkle with chopped spring onions and sesame seeds for added flavor and crunch.

9. Serve: Transfer the dish to a serving platter, ready to impress your family and friends!