Prep Time 25 minutes mins
Cook Time 20 minutes mins
Resting Time 18 hours hrs
Total Time 18 hours hrs 45 minutes mins
For best results, ensure your starter is at peak activity (domed and bubbly) before mixing, as sluggish starter will lengthen fermentation time and reduce oven spring; adjust bulk fermentation by watching the dough rather than the clock, looking for visible bubbles and a soft, airy feel. A wetter dough is key to an open ciabatta crumb, so resist the urge to add extra flour, and instead use wet or oiled hands and tools to manage stickiness. Cold fermentation in the fridge develops flavor and makes the dough easier to handle, while gentle cutting and minimal shaping preserve the internal gas pockets that create the characteristic holes. If your kitchen is cool, extend proofing times, and if it is very warm, check the dough earlier to avoid over-proofing, which leads to flat rolls. Finally, strong initial heat and steam help maximize oven spring and a thin, crisp crust, so preheat thoroughly and keep the oven door closed as much as possible during baking.