Pluck off heads and remove entrails of the dried baby anchovies. *2
Place the prepared dried anchovies in a small saucepan over low-medium heat to dry roast them for a few minutes without using any oil.
Fill a container with cold water and add the dry roasted baby anchoivies.
Let it stand overnight.
Line a sieve with a sheet of kitchen paper towel and place it over a large bowl.
Strain the dashi into the large bowl. *3
Use it for cooking or store in the fridge. *4
Steep & Simmer (Nidashi) Method
Pluck off heads and remove entrails of the dried baby anchovies.
Place the prepared baby anchovies in a saucepan with water to steep for 30 minutes.
After 30 minutes steeping, put the saucepan over medium-high heat and bring it to boil.
When the stock boils, turn the heat down to low and let it simmer for 3-5 minutes.
Remove any scum off the surface as often as necessary. *5
Strain the stock through a sieve lined with kitchen paper towel.
Use it for cooking or store in the fridge. *4
Notes
*1 the ratio is usually 2-4 % of ingredients to water.*2 Do this carefully because we don’t want to extract any bitter taste from the heads and entrails.*3 Leftover dried baby anchovies can be used for Tsukudani and Furikake. See recipe in the above post.*4 This dashi will last in the fridge for a couple days. If you are not going to use it in two days, keep the dashi in the freezer. It will last about 3 months frozen.*5 In order to extract melow and bold umami flavour.