Cut beef into thin pieces(cut against the grain, as shown on video)
In a container, add beef pieces and marinate ingredients; mix well. Marinate for 6 hours in refrigerator.
In a medium saucepan, bring water to a boil, add in broccoli and carrots. Blanch for a minute and drain.
Heat about 1 tbsp olive oil in a large skillet over high heat. Add garlic, sizzle in hot oil for a while, stir in marinated beef with the marinade until sauce form a glaze on beef. Add in 1 tbsp oyster sauce, ½ tbsp soy sauce, ½ tbsp sugar and 1 tbsp white wine. Stir well till beef pieces are evenly coated. Stir in broccoli, carrots and red chili pepper.