Frying is a popular cooking method that involves immersing food in hot oil or fat. The hot oil cooks the food quickly, creating a crisp exterior while retaining moisture. There are different types of frying techniques, including shallow frying, deep frying, and stir-frying. Pan-frying cooks food in a shallow layer of oil, while deep-frying cooks food by completely submerging it in hot oil. For the best final product, use the right oil, maintain the proper temperature, and avoid overcrowding the pan.