In a stand mixer bowl, combine sifted flour and Saf yeast. (Note: Saf yeast doesn’t need presoaking/activating in advance. If using another dry yeast, follow instructions on the packaging.) Add room temperature milk mixture. Using K-shaped attachment and “stir” speed, combine all ingredients. Switch to high speed and knead the dough for 5 minutes. Add cubed room temperature soft butter and stir to combine. Switch to high speed again and knead the dough until it all gets together around the attachment, sides of the bowl almost clean.