Wow! What a wonderful surprise!
Let's hope this is not a fluke, but a sign of great things (loaves) to come. :)
400g bread flour
I took the starter out of the fridge late morning, so that it could warm up and expand a little. At around 4pm I added the flour and water and started kneading until the dough was silky soft and smooth. Towards the end I added the salt and kneaded it a bit more. Then into a floured bowl, cover and let rest on the kitchen bench where it is not very warm. Ready for a (very) slow rise.
This morning, I took out the risen dough, shaped the loaf and put it on the baking tray to rise a bit more.
2 hours later, the bread was in the hot oven and baking nicely.Lunch was good! :)