The starter should be bubbly. If not, tuck it up and leave it for a bit longer. If it is still not bubbly, you may need to troubleshoot.
Add the dough ingredients to the refreshed starter and knead well for 10 minutes.
Cover the bowl with a shower hat and leave on the counter for 6 hours.
Stretch and fold the dough every hour during that time (this is important to do if you want holes). To do that simply pinch the edge of the dough, stretch it up and fold it over the rest of the dough. Don’t press it down, just lay it down. Work your way around the edge of the dough, stretching and folding 4-6 times. That’s it.
After 6 hours, turn the dough out on to a floury surface. Stretch and fold the dough one last time and then shape it into a tight ball.
Flour the top generously and place it floury top side DOWN in a well floured, 1 kg, round rising basket.
Cover it with the shower hat again and let it rest 2-4 hours until it passes the probe test.
Preheat the oven to 230 degrees C.
Line a baking tray with parchment and gently turn the dough out of the basket. Pop it in the oven and bake for 10 minutes and then lower the temperature to 200 degrees C and bake for a further 30 minutes.
Remove the dough from the oven and let it cool completely on a wire rack.