Batatas al rescoldo
Long after the meat comes off, the fire of an Argentine asado still has work to do. Sweet potatoes pushed into the glowing embers (el rescoldo) at the start of the cook come out an hour later with charred, papery skins and flesh that is soft, sticky and almost caramelised, with a smoky edge. They are split open at the table, filled with butter and coarse salt and eaten as a side to the asado or as supper by the fire on a camping trip. Burying them in live flames is the trap: the skin blackens right through while the inside stays hard, so wait for a bed of settled embers and ash. Wrapping them in foil gives softer skins and less risk if you are new to it, and an oven at 200 °C does a fine job indoors. Chef's tip: choose sweet potatoes of the same thickness, around 250 g each, so they cook evenly together.
























