To make the dark chocolate paste, you will need to combine cocoa powder, melted dark chocolate (or black food color), and milk. Then you need to the other half of the dough and mix it with the paste.
Work the chocolate into the dough with your hands. Kneading to incorporate all the chocolate into each dough.
You should now have one dark chocolate ball of dough and one light chocolate ball of dough.Lightly flour each ball, cover it in plastic wrap and set it in the fridge.Let all three dough balls chill for about 60-90 minutes.
Remove all three dough balls from the fridge. Weigh the white ball of dough and divide into 8 equal pieces.Repeat with the light and dark chocolate dough balls.You should now have 24 pieces of dough.
Start by rolling each of the light brown pieces into a small hot dog shape.Then using a rolling pin roll each of the dark chocolate hunks into flat oval.Place the light chocolate sausage onto the flat dark chocolate oval.Using a pastry brush lightly coat the edges of the dark chocolate with milk. Then fold the dark chocolate over the light chocolate as if you were wrapping a hot dog bun around a hot dog.The result should look like a chocolate cigar. Now take the white dough and toll into an oval with the rolling pin. Now take the white dough and toll into an oval with the rolling pin.Repeat the process by placing the dark chocolate wrapped ‘sausage’ onto the white dough oval.Paint the edges of the white dough with milk and then fold it over the dark chocolate, closing the seems.The result should now look like a log with a light chocolate center, a wrapping of dark chocolate, and then a final wrapping of white dough.Repeat this process with the remaining dough until you have 8 logs.
Now, roll each log lengthwise with your hands, until it becomes doubled in length. Like a long snake.
Prepare loaf pan with parchment paper
Stack dough logs into the pan.
Cover with a light tea towel and place in a draft free warm location to puff and double in size. At least an hour.
Preheat oven to 375 F (190 C).Then turn down to 350 F (176 C) and place loaf into the oven.Bake for 40-50 minutes