Chinese stir-fry marinate

Per 200g meat

• Salt ¼ tsp
• Pepper (white or black) ⅛ tsp
• Light soy sauce ¼ tsp
• Dark soy sauce ¼ tsp
• Corn starch 2 tsp
• Baking soda ¼ tsp
• Oil to coat, ½ tbsp
• For beef add 2 tbsp water