Mix flour, sugar, yeast, pepper flakes, and salt in a standing mixer
Whisk water, eggs, yolks, and melted butter in a separate bowl
Mix egg and flour
Mix the dough for 8 minutes on medium speed with the dough hook
The dough will exceed the bowl's sides and bottom
Form the dough into a ball on a clean surface and place it in an oiled basin
Cover the dough and place it in a warm place
Wait for 1 ½ to 2 hours for the dough to double in bulk
Press dough on a flourless surface to reduce puffiness
Stretch the dough into an 18" x 12" rectangle with the long edge matching the counter
Leave a 1" border around the dough as you evenly distribute the cheese cubes
Start rolling the dough into a log from the nearest edge
Squeeze the seam and end to seal
Roll the log so the seam is down
Roll the log on the counter gently until it's 30 inches long
Repair tears with a pinch
Start coiling the log at one end
Tuck the ends underneath the coil
Put the bread in the prepared cake pan
Clean a dishcloth and cover the bread
Let it rise in a warm place for 1–1.5 hours until doubled
Preheat the oven to 350° with the rack in the lower center
Apply egg and pepper flakes to the loaf's top
Place the cake pan on a rimmed baking sheet
The loaf should be golden brown after 20–25 minutes
Flip and foil the loaf after 25-30 minutes
Bake till 190°
Butter the bread and place the pan on a metal rack
Pan-cooling for 10 minutes
Knife-edge the bread to remove from the pan
Carefully remove bread from pan to rack with a spoon
Let it cool for 30 minutes before cutting
Warm up and serve
Knife-edge the bread to remove from the pan
Carefully remove bread from pan to rack with a spoon
Let it cool for 30 minutes before cutting
Warm up and serve
