The pufferfish Shirako refers to the testis part of the pufferfish, which is the gonads of the male pufferfish.

This part is regarded as a delicacy, characterized by its smooth surface, delicate interior, rich nutrition, rich in protein, and low in fat. Fugu Shirako can be cooked in a variety of ways, including sashimi, hot pot or barbecue. It should be noted that pufferfish Shirako is an edible ingredient, and special care needs to be taken during handling and cooking to avoid poisoning caused by accidentally eating other parts.