Cut beef and marinade for 20 minutes at room temperature or longer in the fridge
Mix up stir fry sauce (oyster sauce, water, balsamic vinegar) set aside
Steam broccoli and set aside
Heat oil in large sauté pan on high heat
Sauté garlic until tender
Add beef and fry until beef is cooked on both sides
Add stir fry sauce and broccoli and stir until all is combined
Serve over warm white rice or for a healthier option – cauliflower rice