Into the bowl of a stand mixer add flour, salt, sugar, and butter.
At low-speed mix for about 2 minutes till butter is crumbled in the flour.
Now add water and starter. Knead at low speed for 1-2 minutes till the flour is hydrated and the dough comes together.
Stop and cover with a wet kitchen towel or a cling wrap and let the dough rest for about half an hour.
Now, knead the dough at low speed for 5-7 minutes. Increase the speed and knead for an additional 5 minutes till the dough becomes smooth.
Transfer into a bowl and apply little oil on the surface of the dough.
Cover the bowl with the cling wrap and let bulk rise in the refrigerator overnight or at least for 6-7 hours.
Remove from the refrigerator and let it rest for an hour on the kitchen counter.
Remove on to a floured kitchen counter and flatten using your palms.
Roll to form a log and seal the dough using the tip of your fingers. Transfer into a 9x5 inch greased loaf pan.
Spray the dough with water and keep for rising in a warm corner of the kitchen.
Let the dough rise till it rises about an inch above the rim of the loaf pan. It may take somewhere from 3-7 hours depending on the ambient weather.
Preheat the oven to 385 0 F and place a pan covered in aluminum foil. Put ice cubes in the pan to induce steam in the oven while baking.
Bake for 40-45 minutes in a pre-heated oven till the crust turns brown.
Let cool for half an hour before slicing.