Sōmen are usually served cold with a light flavored dipping sauce[1] or tsuyu. The tsuyu is usually a katsuobushi-based sauce that can be flavored with Japanese bunching onion, ginger, or myoga. In the summer, sōmen chilled with ice is a popular meal to help stay cool.
Sōmen served in hot soup is usually called "nyumen" and eaten in the winter, much as soba or udon are.