II
The Method
1
Combine the type '0' flour and semola rimacinata in a large bowl. Disperse the pasta madre in the water, then add to the flours. Mix until no dry flour remains, then work the dough by hand for 10–12 minutes until it is smooth, cohesive, and pulls cleanly from the bowl. Add the salt in the final 2 minutes of mixing. The dough should feel supple and slightly tacky, not sticky — it holds its shape when cupped in the hand.
2
Cover the dough and allow it to ferment at room temperature for 3–4 hours, folding the dough over itself every 45 minutes for the first two hours. The dough is ready to shape when it has increased visibly in volume, feels aerated rather than dense under the hand, and a small piece dropped in water floats within 30 seconds.
3
Turn the dough onto an unfloured surface and shape it into a tight round by pulling the sides underneath, building surface tension with each fold. The shaped loaf should feel taut across the top with no slack skin — press lightly with a fingertip; the indentation should spring back slowly but fully. Place seam-side down in a well-floured proving basket or bowl lined with a floured cloth.
4
Cover the basket loosely and refrigerate at 4°C for 12–16 hours. This is where the bread lives or dies: insufficient cold fermentation produces a bland, structurally weak loaf with neither the flavour complexity nor the keeping quality that define pane cafone. The fully fermented loaf, when removed from the refrigerator, will have expanded measurably and carry a distinct sour-yeasty aroma at the surface.
5
Place a cast iron Dutch oven (or baking stone and a pan of boiling water) in the oven and heat to 270–280°C for at least 45 minutes. Remove the cold loaf from the refrigerator, invert it onto a sheet of baking paper, and make a single deep slash across the top with a lame or razor blade at a shallow angle. Dust the slash with semola rimacinata. The score must be decisive and deep — a tentative cut will close in the oven and deny the crust its characteristic split.
6
Lower the loaf on its paper into the preheated Dutch oven, cover with the lid, and bake for 20 minutes with the lid on — the trapped steam delays crust formation and allows maximum oven spring. Remove the lid and continue baking for a further 25–30 minutes. The bread is done when the crust is a deep, uniform caramel-to-dark brown — not pale, not uniform beige — and the loaf, when tapped on its underside, returns a resonant hollow knock.
7
Transfer the loaf immediately to a wire rack. Allow it to cool for a minimum of 2 hours before cutting. The interior crumb continues to set during this period; bread cut before cooling produces a gummy, collapsed crumb that misrepresents the loaf entirely. The cooled bread will yield a thick, leathery crust and a moist, open, irregular crumb with a mild but distinct tang.