Kafir lime leaves, also known as makrut or Thai lime leaves, are the aromatic, glossy green leaves of the kaffir lime tree native to Southeast Asia. They have a distinctive citrus fragrance with a slightly woody and peppery undertone, offering a robust flavor that enhances a variety of dishes. The leaves are typically used whole or chopped in Southeast Asian cuisines such as Thai, Indonesian, and Malaysian, imparting a fragrant citrus aroma to soups, curries, and stir-fries. Historically, these leaves have been an essential ingredient in traditional culinary practices across the region, valued both for their aromatic qualities and their cultural significance in festive and everyday cooking.