When the yeast has bubbled up and it’s all ready to work with start kneading the flour, salt, yeast with the milk forming a nice dough. Knead for a good few minutes until the hand is dough clear and then set aside. Add some oil to the dough and form into a ball. Cover with cling film and a kitchen towel. Allow to prove for a good 20 min to 1 hour depending on the temperature and the ambient. I always place the dough in a warm/sunny corner of the kitchen.