The best way to fry these egg rolls is in a deep fryer, but I hate cleaning the fryer afterwards. So, I usually fry mine in batches over medium-high heat in a pot filled with at least 4-5 cm of cooking oil (enough oil so that the egg rolls are fully submerged when frying). To gauge if the oil is hot enough, insert a wooden chopstick and if the oil starts to bubble rapidly, then it’s ready. When putting the egg rolls into the pot, don’t overcrowd them. Allow them to cook until they they reach a light, golden color. Immediately, transfer the egg rolls into a fine-meshed sieve to cool.