In a bowl, toss the meat with 2 Tbs soy sauce, 1 Tbs corn starch and the pepper. Marinate the meat at room temperature for 1 hour.
Combine orange zest, garlic and finger in a small bowl and set aside.
In another bowl combine 1Tbs soy sauce, 1 tsp corn starch with the orange juice, sugar, wine, hoisin and sesame oil.
Heat the vegetable oil in a wok or pot. Add handful of beef into the oil one piece at a time. Cook for 2 minutes or until crispy and brown. Transfer with a slotted spoon to paper towels to drain. Repeat with remaining beef. Discard oil.
Add the zest, garlic mixture to wok and cook for 1 minute. Stir in the orange juice mixture alone with the fried beef. Stir until sauce thickens (about 3 minutes).