As a substitute for the takana pickle, there are lactic acid fermented pickles such as Kyoto’s Suguki, Hiroshimana, and Nozawana pickles.
When using this dashi soy sauce as a dipping sauce for soba or udon noodles, dilute 1 part dashi soy sauce with 2 parts cold water.
When making the dashi soy sauce, you can add sake to the mirin instead of the water and evaporate the alcohol together. The sake will add a savory flavor to the dashi soy sauce, making it even more delicious.
You can store the chopped spring onions in the refrigerator for 3 to 4 days. Line a paper towel in a food storage container and place the spring onions in it.