Mix starter with water until dissolved.

Then add flour and knead it until everything comes together. Let it rest for 30 minutes.

Add salt and knead until salt dissolves, also I’m doing slab and folds

Then I’m doing strength and fold two or three times every 30mins

Let it rest until it’s almost doubled in size

Then pre shape the dough, let it rest for 20 mins and final shape.

But it in basket and in the fridge overnight

Baking right after fridge in Dutch oven 15 mins 240c then 15 mins with lid off