Add yeast, 4 Tbsp of the warm milk and teaspoon sugar to a small bowl and cover with a clean kitchen towel for 10-15 minutes or until yeast is bubbly.
Sift 6 cups of white flour into your stand-mixer's bowl, add a pinch of salt, bubbly yeast, sugar, rest of the milk and softened butter cut up into chunks into the bowl and knead with the dough hook on high for at least 5 minutes or until the dough is very elastic.
Leave dough in the bowl and cover with a clean kitchen towel and let rice until doubled in size, about 45 minutes.
Preheat oven to 400F (200C).
Punch down the dough and divide into three equal parts.
Roll parts into long strands, pinch ends together and start braiding all the way down and then pinch other ends together.
Place on a baking sheet and form an O and pinch ends together.
Brush with a little milk and place in the oven for 20-25 minutes or until golden.