• Pre-heat the oven to 350 F (180C) and grease and flour a 9 inch loaf pan.
• In a medium bowl whisk together the flour, salt and baking powder and set aside.
• Melt 5 ounces of chopped dark chocolate in a bowl over a bain-marie stirring occasionally until smooth. Let the chocolate cool a bit.
• In a large bowl beat together the butter and sugar until pale and fluffy, about 3 to 4 minutes. Add the vanilla extract and the eggs plus yolk, one at a time and beat. Add the flour and milk mixtures alternately. Mix just until combined.
• Pour ⅔ of the batter in the loaf pan and pour the rest into the melted chocolate mixture. Stir well. Spoon the chocolate on top of the plain batter and swirl lightly with a knife.
• Bake for approximately 1 hour or until a toothpick inserted in the middle of the loaf comes out clean. Let the bread cool for 10 minutes in the pan, then transfer it onto a cooling rack to finish cooling completely. Drizzle the chocolate glaze on top or dust with some powdered sugar before serving. Enjoy!

For the Chocolate Glaze

• In a small pot heat the butter and cream until hot, but not boiling. Remove from the heat and add the chocolate chips. Stir until smooth. Let it cool to lukewarm and until it has thickened.