01 - Combine beef strips with soy sauce, Shaoxing wine, white pepper, and 1 teaspoon cornstarch in a medium bowl. Mix well and let rest 10 to 15 minutes.
02 - In a shallow dish, blend cornstarch, all-purpose flour, and salt evenly.
03 - Heat vegetable oil in a deep pan or wok to 350°F (180°C), sufficient for deep frying.
04 - Dredge the marinated beef strips in the dry coating mixture, shaking off excess.
05 - Fry beef strips in batches for 2 to 3 minutes until golden and crisp. Drain on paper towels.
06 - Whisk together soy sauce, rice vinegar, hoisin, honey, chili garlic sauce (if using), and water in a small bowl.
07 - Discard excess oil, leaving 1 tablespoon in the pan. Return to medium heat and bring sauce to a simmer.
08 - Add crispy beef to the pan and toss gently, coating evenly with sauce for 1 to 2 minutes.
09 - Transfer to a serving plate. Garnish with sliced green onions and toasted sesame seeds. Serve immediately.