To become scorched or charred by heat (usually occurs automatically). Used for food or objects that are burned to a crisp or scorched.
トーストを入れすぎて、端が焼け焦げてしまった。
I left the toast in too long and the edge got scorched.
夕立で庭の古い木材が焼け焦げてしまった場所がある。
There is a spot where the old wood in the garden got scorched by the sudden fire.
フライパンの温度が高すぎると、食材が焼け焦げるから注意して。
Be careful because if the pan is too hot the ingredients will get scorched.