Warm the milk in the microwave for 15 second. Add sugar and dry instant yeast. Stir to dissolve gently. The warm milk and the sugar help to activate the yeast. Set it aside for 5-10 minutes or until it is foamy.
Separate the eggs into yolks and whites. Leave the egg whites for later.
In a stand mixer, attach the dough hook, add bread flour, sea salt, melted butter and egg yolks, mix at medium speed.
Add the yeast mixture into the flour mixture. Mix them at a medium to high speed until the dough pulls away from the bowl sides. The bowl sides should be clean and the dough should be firm and elastic.
Prepare a large mixing bowl and oil it with a little bit of olive oil. Use a paper towel to wipe the excess oil. Put the dough into it and wrap it by cling film.
Place the dough in a warm place and let it prove for 60 minutes or until double in size.
Press the dough a few times to knock the air out. Roll the dough into a ball and divide it into 4 small equal pieces.
Start with one piece of the dough. Sprinkle with some flour onto the surface and roll the piece of dough into about 20cm diameter round and 5mm thick circle. Slide a sheet of parchment paper underneath. While working on the first piece, cover the other three pieces of dough with a tea towel avoid getting dry.
Use a spatula to spread the homemade pesto sauce evenly onto the dough (right to the edges).
Repeat the exact same process for the second and third pieces. Stack each finished layer on top of the others.
Roll the last piece of the dough and place it on the top.
Take a small drinking glass and place it in the middle of the round dough. Use it as a guide and use a sharp knife and cut the dough all the way down into four equal portions. DO NOT cut into the central core under the glass.
Then cut each portion into half again. Then again cut each segment into half. You will end up with 16 equal segments.
Take one segment and twist it twice to the left. Lift the next piece and twist it twice to the right. Move around the 16 segments repeating the alternative left/right twist pattern. Place each twisted segment back in its original position.
Working around the 8 pairs of dough, pinch the two outward facing ends of each pair together using your thumb and forefinger to make a beautiful 8 pointed star shape.
Lift using the parchment paper and place the whole dough into a cast iron pan (10" should be the correct size) or any baking pan of similar size. Cover it with a tea towel and leave it to prove for 45 minutes.
Preheat the oven to 170°C.
After the second proving, brush the dough with the egg whites before putting it into the oven. Bake for about 15-20 minutes or until golden brown.
When it comes out from the oven, leave it cool down for a while on a wire rack. Serve it warm! Yum!