4 cups all purpose flour
1 packet active dry yeast
3/4 cup whole milk (warmed to 110 degrees F)
1/4 cup sugar
1/2 tsp kosher salt
2 eggs + 1 egg yolk
1 stick of unsalted butter (softened)
1 egg beaten (for brushing)
Filling:
1 cup brown sugar
1/2 cup coco powder
1 tbsp cinnamon
zest of one large orange
4 oz dark chocolate chopped
Combine yeast, sugar, and whole milk into the bowl of a standing mixer. Let it sit for about five - ten minutes until it become foamy. Add the flour and salt and mix until fully combined. Add in the 2 eggs and yolk, along with the butter and mix using a dough hook for roughly 15 minutes. Remove the dough and form into a bowl. Place in a lightly oiled bowl and cover with saran wrap or a damp towel. Let rise in a warm space for 8 hours, or overnight in the fridge. When dough has doubled in size, divide the portions in half and roll out the dough into a 11 x 15 inch square. To make the filling, combine all ingredients in a sauce pan and cook over low heat until the chocolate has just melted. Spread the chocolate filling over the flat dough leaving roughly 1/2 inch of uncovered dough along the sides. Tightly roll the dough into a log shape. Cut the log in half lengthwise (the hot dog way). Place one piece of the dough over the over and braid together. Place the loaf into a loaf pan and let rest for two hours. Beat an egg together and using a pastry brush, lightly brush the egg mixture over the loaf. Preheat oven to 350 degrees F and bake for 35 minutes. Repeat with the second portion of dough.