The sponge mushroom, also known as the morel mushroom, is a highly sought-after and rare delicacy in the culinary world. It has a distinct honeycombed cap that resembles a sponge and a nutty, earthy flavor. There are several synonyms for the sponge mushroom, including wrinkled thimble-cap, morel, and sponge cap. Other common names include dryland fish, hickory chicken, and brain mushroom. These mushrooms are found in temperate regions around the world, typically in the springtime, and are commonly used in dishes such as pasta, soups, and sauces. Whether you call it a sponge mushroom or a morel, this delicious fungus is sure to elevate any meal.