In the mixing bowl melt the chocolate either in a microwave or boil water and pour over the chocolate just to cover it. Leave to melt
Add all the dry ingredients and mix with a wooden spoon
Add the rest of the water and mix well
Turn on a kitchen surface and knead for about 10-15 minutes until the dough is elastic and stretches nicely.
Leave to prove for the first time in the mixing bowl or you can use a new bowl wiped with oil. Make sure your dough is covered with a bag or a kitchen towel, so that it doesn't dry out.
Once the dough has doubled in size, place it on the kitchen surface, deflate it and roll into a sausage shape. You can do this twice to give the dough extra support.
Shape & place into a bread tin or a basket and cover to keep moist.
Leave to prove, until doubled in size in a warm (but not hot) environment
Bake at 250C for 10 minutes, then turn down to 200C based on how brown you want your bread do be. Carry on baking for further 20 minutes or so.
To check that your bread is baked, tap on the bottom of your bread. If the bread sounds hollow, it's done. If not, just pop it back to the oven for further 5 minutes and then re-test.