Marutomo Soba Soup Base Straight is a Japanese dipping sauce, or tsuyu, that is ready to use and does not need to be diluted. Made from a dashi stock with soy sauce, sugar, and dried fish flakes, it delivers a savory umami flavor for cold soba noodles. The 360 ml bottle is also versatile and can be used to add flavor to other Japanese dishes. 

• Balanced flavor: It is described as having a savory, umami flavor that is both rich and refreshing. Some users note that it tastes similar to dipping sauces from soba restaurants in Japan.
• For cold soba (zaru soba): The most common way to use this is as a dipping sauce for chilled, cooked soba noodles.
• For hot soba: For a hot noodle soup, some versions of straight tsuyu can be mixed with an equal part of hot water, though the "straight" type is typically served as-is for dipping.
• Other applications:
  • Tempura dipping sauce (tentsuyu): Serve it on the side for dipping tempura vegetables or shrimp.
  • Chawanmushi: Use it as a base to season savory egg custard.
  • Boiled dishes (nimono): Add it to stews or other boiled dishes for a boost of flavor.
  • Seasoning: Drizzle it over rice bowls or use it in stir-fries.

• Allergens: Due to the inclusion of soy sauce and dried fish, common allergens are soy, wheat, and various fish.