Kaiyaki Miso (Scallop-Shell Miso Egg)

Quick answer

Total time: 22 min
Level: Easy
Servings: 1 servings
Ingredients: 7

About this dish

Kaiyaki miso is an Aomori dish from Tsugaru and Shimokita.

A large scallop shell serves as a tiny pan for broth made with grilled dried fish and bonito flakes, red miso and ita-fu simmer in it, and beaten egg softly binds the mixture. In the formal ingredient list, the defining scallop element is the shell used as cookware rather than scallop meat or assorted seafood. A small cast-iron skillet reproduces the heat and texture when an old, cooking-safe natural shell is unavailable. Stir until the edges are set and the moist center is fully hot, then spoon it over rice.

Ingredients (1 servings)

Ingredient	Amount	Unit
egg	1	piece
bonito flakes	2	g
grilled dried sardines	2	piece
sheet wheat gluten fu	5	g
red miso	15	g
green onion	10	g
water	180	ml

Instructions

Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.

5 steps

1

Control

Remove heads and guts from two grilled dried sardines and split them.

Soak with 180ml water in a small pan for 10 minutes, then simmer gently for 5 minutes.
2

Prep

Add 2g bonito flakes, turn off heat, and wait 2 minutes.

Strain to obtain 140ml broth. Break ita-fu to bite-size pieces and slice green onion to 2mm.
3

Control

Pour 140ml broth into a clean scallop shell at least 18cm wide that is verified safe for direct heat, or use a small cast-iron skillet. Bring to a gentle simmer, dissolve 15g red miso, and add ita-fu.
4

Control

Simmer 2 minutes so the fu absorbs broth.

Beat the egg until no white clumps remain, pour in a circle, and stir slowly from the edge inward every 20 seconds to form large soft curds.
5

Step

When the egg center reaches 71C with no runny raw egg, scatter green onion and turn off heat.

The shell or skillet is very hot, so set it on a trivet for 1 minute before serving with rice.

Practical Cooking Checks

The cues that matter most while cooking.

Key technique: Broth from grilled dried sardines and bonito
Finish cue: Beat the egg until no white clumps remain, pour in a circle, and stir slowly from the edge inward every 20 seconds to form large soft curds.
Avoid this: Do not heat decorative, bleached, or coated shells.