Starter left for 7 to 9 hours till 50% increase

Mix everything together except butter. Knead until a dough ball forms. Then add in butter and knead until window pane. Proof until double which may take 3 to 6 hours

After second proof, deflate and shape into 3 rolled dough for loaf pan or shape into burger buns

If loaf pan, Bake at 120 deg cold. Increase oven heat 10 deg every 10 mins until u reach 180. Bake at 180 for last 10 mins. Unmould after baking to reduce shrinkage. If bake as buns, bake at 180deg for 20 mins