Stephvnietea takes Mongolian beef to the Blackstone griddle, showing step by step how to prep, marinate, and cook it to perfection. From fresh ginger and garlic to a savory homemade sauce, every detail builds big flavor. Watch how it all comes together for a dish that’s ready to serve hot off the griddle. Ingredients Beef & Vegetables 1 lb beef flank, thinly sliced into 2-inch strips 1 large onion, sliced into ¼-inch strips 4–5 green onion stalks, cut into 2–3 inch pieces 4–5 garlic cloves, fine