Combine 4 tablespoons of butter and 3/4 cup of whole milk in a large bowl and warm until the butter is fully melted
Allow the butter and milk to cool to between 100-110 degrees
Add 1/4 cup of granulated sugar and 1 packet of active dry yeast into the butter and milk and let it sit for about 10 minutes or until the yeast is bubbly and frothy
Whisk 1 egg into the bowl
Use a mesh sifter to sift 2 1/2 cups of all purpose flour, 1/3 cup of unsweetened cocoa powder and 1 teaspoon of salt into the bowl
Mix until the ingredients are fully combined and a dough begins to form
Transfer the dough onto a floured surface and knead for about 5 minutes
Transfer the dough into a large lightly greased glass bowl and cover tightly with plastic wrap
Rest the dough for 60-90 minutes or until doubled in size
Transfer the dough onto a floured surface and roll it into a large rectangle
Spread 4 tablespoons of softened butter over the entire surface of the dough
In a small dish, combine 1/3 cup of brown sugar with 1 tablespoon of unsweetened cocoa powder and 1 teaspoon of espresso powder and sprinkle the mixture over the entire surface of the dough
Sprinkle 2 ounces of finely chopped dark chocolate over the surface
Roll the dough tightly as you would a cinnamon rollĀ and pinch the seam to seal
Place the rolled dough longwise pointing away from you, seam side down
Using a sharp knife, cut the rolled dough in half (see photos above)
Braid the dough (photos and directions above)
Prepare a 9"x5" loaf pan by covering the entire interior surface with about 2 tablespoons of softened butter and sprinkling with 1 tablespoon of granulated sugar
Carefully transfer the braided loaf into the prepared loaf pan and tuck the ends under
Cover the loaf pan with plastic wrap and let it rest in a warm place for 45 minutes
Once the dough has puffed up nicely, bake on a center rack at 350 degrees for 25-28 minutes
The bread is ready when the top of the loaf feels set and firm to the touch
Transfer the bread pan onto a cooling rack to cool for 10 minutes and then transfer the loaf directly onto a cooling rack