National Truffle Day is celebrated on January 16 each year in the United States. This day honors the delicious and luxurious truffles, which are a type of fungus that grow underground, often in association with tree roots. Known for their unique flavor and aroma, truffles are considered a delicacy in many cuisines around the world. On National Truffle Day, food enthusiasts and chefs often explore various ways to incorporate truffles into their dishes. This can include using truffle oil, truffle salt, or fresh truffles in recipes, allowing people to appreciate the rich taste and culinary versatility of this gourmet ingredient.