You want about an inch of oil in the bottom of the pan. https://www.allrecipes.com/recipe/257221/authentic-sweet-and-sour-pork https://www.allrecipes.com/recipe/31144/sweet-and-sour-pork-iii For deep frying. For the 600ml vegetable oil, for a 6.5 inch saucepan we used 600ml of oil, alternatively use a smaller saucepan.