Add Yeast, water & sugar to a mixing bowl, whisk together, then sit for 5 minutes to allow yeast to activate.
In a separate bowl, add the eggs, honey, oil & salt, whisk to combine completely.
Add this mixture to the water & yeast mixture, then add this mix to the bowl of a stand mixer, fitted with the dough hook attachment.
In a separate bowl, mix the AdVital into the flour.
Turn the stand mixer onto low speed, add the flour & Advital into the bowl, mix for 2 minutes to fully incorporate all the wet ingredients, then turn the mixer onto medium speed & mix for 10 minutes, the dough should be nice & smooth.
Lightly grease a metal container & place in the dough, this will allow the dough to rise without sticking. Place in the oven (DO NOT TURN OVEN ON).
Bring a pot of water to the boil, place this directly underneath the container in the oven, close the door & allow the dough to rise for 40 minutes.
Once it has proved, knock the air out of the dough, then return to the oven with fresh water for another 40 minutes.
Knock the air out of it again & proceed to braiding the dough, divide the dough into 4, roll each piece into a long strand & braid together, pinching the ends to make it neat.
Allow proving on the bench for 15 minutes, then brush with beaten egg.
Bake at 160°c for 20 minutes, remove from the oven, brush the white parts with beaten egg again & return to the oven for a further 20minutes.