Dissolve yeast in warm milk and let stand until foamy, 3 to 5 minutes.
In a large bowl, sift together the all-purpose flour, bread flour, sugar, and salt. Transfer to a stand mixer fitted with a paddle attachment. Add the yeast mixture and beat for 2 to 3 minutes. In a separate bowl, lightly beat the eggs and the eggs yolks. Add to the dough and beat for 3 to 5