Coconut rochers are the little treat that rescues the egg whites left at the back of the fridge after the yule log or the mayonnaise: coconut, sugar, whites, and that's it. Flourless, they're crisp at the tips and soft in the middle.
The pastry chef's trick: warm the mixture over a water bath for a few minutes before shaping it. The sugar melts, the whites start to set, and the mixture turns sticky and easy to mold. The macaroons then keep their pretty pyramid shape instead of slumping into flat cookies.