I would have been afraid to deep fry. I don't understand how the marrow held up. It would be almost like deep-frying a stick of butter without the batter, or so I would have thought.
If I could have got my hands on some chicken stock I would have made quenelles with the breadcrumbs, marrow, and garlic. Soupe aux cèpes, quenelles de moëlle. Otherwise I think I would have had to go with pâté on croûtons of the bread.
