soba tsuyu is a traditional Japanese dipping sauce primarily used for serving with soba noodles. It is made from a blend of soy sauce, mirin, and dashi, which gives it a savory and slightly sweet flavor. This sauce enhances the taste of the noodles and can also be used as a dressing for salads or as a marinade. Typically served chilled, soba tsuyu is enjoyed during the summer months but can be used year-round. It is often garnished with green onions or wasabi for added flavor. This versatile sauce is a staple in Japanese cuisine, complementing various dishes beyond just noodles.