Start by melting the butter and allow it to cool until it reaches room temperature
In the first mixing bowl, add your flour, sugar and salt and whisk well
In another mixing bowl, add the milk and instant yeast and whisk well
Add the egg and whisk
Finally add the water and whisk everything very well
Pour the liquid mixture in the first mixing bowl containing the dry mixture and start whisking
After a bit, switch from the whisk to a spatula and incorporate everything together
Once all the flour has disappeared, pour the melted butter. Start incorporating using a spatula and continue using your hands (food safe gloves are advised)
Once the dough has formed inside the mixing bowl, cover the bowl with a cling film and allow it to rest for 45 mins
On your working surface without sprinkling any flour at this stage, place the dough and gently flatten it with your fingers and fold it over itself. Repeat a few times
Flatten the dough with your fingers and spread your chocolate chips all over. Press gently with your fingers to make them stick on the surface
Fold the dough over itself to enclose the chocolate chips and repeat for a few times
Place the dough back in the mixing bowl, cover it with a cling film and allow it to rest and rise for one hour
Sprinkle your dough with flour as well as your work surface, and place the dough over the work surface
Gently flatten and fold the dough over itself a few times
Place the dough back in the mixing bowl, cover it with a cling film and allow it to rest and rise for one hour
Sprinkle your work surface with flour as well as your dough and place it on the work surface
Divide your dough in 4 equal parts of roughly 140-160 grams
For each dough piece, flatten it, fold it on itself in the shape of a ball and roll it with the palm of your hand and place them on the side
Take some butter and melt it. Use a brush to spread it all over the inside of the mould
Sprinkle some flour and spread it evenly all over the mould (These 2 steps are necessary to ensure that your brioche doesn't stick in the baking process)
Place the dough pieces in the mold and flatten them a little bit to ensure they take all the length and width space
Cover your mould with a cling film and let it rest and rise for 30 mins
Beat the remaining egg in a small bowl
Brush the beaten egg over the dough pieces that have risen and be gentle
Sprinkle sugar crystals on the center of each dough piece
Using your pair of scissors, do a small cut in the middle of each dough piece
Preheat your oven at 180 degrees Celsius (356 degrees Fahrenheit) with convection on
Place the mould in the oven and bake for 15 mins
Remove from the oven and unmold your bake brioche and place it on a cooling grid allowing it to cool for about 30 mins
Your chocolate chip brioche is now ready to be served!