Ingredients used for the fried spring roll are different depending each local but usually it comprises of lean minced pork, sea crabs or unshelled shrimps, edible mushroom, dried onion, duck/chicken eggs, pepper, salt and different kinds of seasoning.
There are also special variants of the traditional pork-based roll, such as Crab spring rolls or Nem Cua Be.
Whichever they are, all ingredients are mixed thoroughly before being wrapped with rice paper into small rolls. These rolls are then fried in boiling oil. The cooked rolls are usually garnished with fresh lettuce and herbs.