Simmered “Koya-Dofu” Freeze-dried Tofu

This ingredient seems a hard dry bread maybe.

“Koya-Dofu” is  a frozen and dried tofu, at first frozen then dried.

Koya-Dofu. Frozen and dried tofu
Koya-Dofu. Frozen and dried tofu

 

Now many of the commercially available products, “baking soda” is added as expansion  and softening agent.

When you use products that contain the baking soda, you don’t need to soak them in water before cooking.  And you have to simmer them in salty dashi broth directly for that not crumble boiled.

The traditional “Koya-Dofu” dose not contain baking soda.  I recommend that you check the product label before cooking.
Cooking of Simmered "Koya-Dofu" Freeze-dried Tofu
Cooking of Simmered "Koya-Dofu" Freeze-dried Tofu
Simmered with “Komatsu-Na” and chicken in soy sauce based dashi broth.
Simmered "Koya-Dofu" Freeze-dried Tofu

・Koya-Dofu
is a dried frozen tofu, also called “Kori-Dofu”  高野豆腐(こうやどうふ)  literally “tofu of mount Koya”  凍り豆腐(こおりどうふ) literally “frozen tofu”
・Komatsuna
is a Japanese mustard spinach (Brassica rapa var. perviridis)   小松菜(こまつな) literally “Komatsu region vegetable”