Start with 390ml and increase to 420ml gradually. Use the consistency of the dough in my video as a gauge! Different bread flours absorb different amounts of water. It's okay if your dough is a touch wetter than mine, but you don't want it soupy as that makes the stretch and folds problematic.
500g is roughly 4 cups of flour. The flour should be fluffed up, spooned into cup and levelled to ensure it's as accurately measured as possible. Scales are always best! Use the tutorial as a guide for consistency of dough and adjust water/flour slightly if needed.
Oven temp: 220C/430F for 18-23 mins (bottom rack!)…this tray was a 9x13 aluminium quarter sheet pan but you can use a larger tray if you prefer it thinner/crispier. No need to stretch it all the way to edges if using a bigger tray. Metal/aluminium is always best at conducting heat.
This recipe can be adapted to be made in the same-day by adding in an extra ½ teaspoon of instant yeast (so 1.5 tsp total) and skipping the overnight proofing in the fridge. Instead of putting it in the fridge, leave the dough to proof covered in the bowl at room temperature for 1-1.5 hours and then continue the recipe as normal from the step where you tip it into the tray (reduce the proofing time in the tray to 1.5 hours).
