200g pork tenderloin, remove any white tissues 1/2 tsp. white pepper 1 tsp. salt 1 tbsp. beer or Chinese cooking wine 1/4 tsp. sugar 4-5 pieces of smashed ginger oil for frying Batter 50g flour 50g cornstarch 1/4 tsp. baking powder (optional) 100ml water Sauce 4 tbsp. tomato ket...