noun
shellfish baked in the shell
Typically refers to shellfish such as scallops or abalone cooked over direct heat while still in the shell, often with soy sauce or butter.
浜辺で貝焼きを楽しんだ。
We enjoyed shellfish baked in the shell on the beach.
noun
shellfish simmered in the shell
Refers to shellfish such as abalone or scallops gently simmered in their own shells, often in a broth or seasoned liquid.
貝焼きは、醤油味で煮込むと美味しい。
Shellfish simmered in the shell is delicious when cooked in a soy sauce broth.
Compound of 貝 (kai, 'shellfish') and 焼き (yaki, 'baking, grilling, simmering'). The exact historical derivation is uncertain, but the term straightforwardly describes shellfish cooked in the shell.