You mix this dough the night before cooking or the day of cooking. I have provided instructions for both ways below, but when I made these, I mixed the dough at night after dinner. Because of this, I didn’t bother warming the water or milk or blooming the yeast. I simply whisked all of the dry ingredients — flour, instant yeast, salt and sugar — in a large bowl, then added cold water, cold milk and the oil. After whisking this up, I stored the dough in the fridge overnight. The following morning, I let the bread rise at room temperature for about an hour before proceeding with the rest of the recipe.