What is shrimp tomalley?

Shrimp tomalley is a greenish or yellowish substance found in the body cavity of certain species of shrimp, such as the American or brown shrimp. It is a concentrated mixture of the shrimp's digestive gland, pancreas, and hepatopancreatic tissue.

Tomalley is considered a delicacy by some culinary traditions and is used as a flavor enhancer in dishes like bisques, sauces, and risottos. It has a rich, briny flavor that is often described as nutty or earthy.

However, tomalley can also contain high levels of cholesterol and toxins, especially in larger and older shrimp. Pregnant women, individuals with compromised immune systems, and people with shellfish allergies are advised to avoid consuming tomalley. It is recommended to carefully examine the shrimp before consuming and remove the tomalley if it appears discolored or unhealthy.