In a small pan, heat the milk with the butter until the butter has melted and the mix begins to steam.
Once it begins to steam, immediately take this off of the heat and mix the flour, yeast, sugar, spices and orange zest in a large bowl and place to one side.
Check that the milk is warm to the touch and add in the egg a little at a time and whisking thoroughly.
Pour the warm milk, butter and egg mix into the bowl of dry ingredients along with the orange juice and bring together into a ball of dough with your hands.
Turn the ball of dough out on to a lightly floured surface and knead for 5 - 10 minutes or until the ball is smooth and elastic.
Place the dough back into the bowl and cover with cling film or a tea towel to prove in a warm place for roughly 1 hour or until the dough has roughly doubled in size.
After the initial prove, stretch the dough out until flat.
Cover the dough with 2/3rds of the dried fruit, mixed peel and chocolate.
Fold the dough in half and cover with the remaining dried fruit, mixed peel and chocolate before folding in half again.
Begin kneading the dough to incorporate the layers of fruit and chocolate into the dough. This should take roughly 5 minutes.
Line a large oven dish with grease proof paper.
Cut the dough into 12 equal sized pieces and roll into smooth balls.
Place the 12 balls into the oven dish allowing room for them to grow and spread.
Again, cover with either cling film or a tea towel and leave in a warm place to prove for a further 30-45 minutes.
Once the dough has increased in size again, pre-heat your oven to gas mark 5 / 180C.
Before baking, make a paste with the plain flour and water. Add just 5 tbsp to begin with, only adding the 6th if it is too thick to pipe.
Add the paste into a piping bag and pipe crosses on top of the buns.
Bake in the oven for 20 minutes until golden brown.
Just before the 20 minutes is up, mix the marmalade and hot water together.
Take the buns out of the oven when the 20 minutes is complete and brush the buns with the marmalade glaze.
Pop the buns back in the oven for a further 5 minutes.
Take the buns out of the oven and allow to cool on a wire rack before eating.