Preheat oven at 180°C and grease loaf pan with butter

Combine and shift all dry ingrdients.

In a bowl, combine espresso coffee with buttermilk and vanilla essence.

Using a mixer, cream unsalted butter with sugar and salt until pale and fluffy.

Add in agg one at a time.

Lower the mixer speed and add in flour mixture and buttermilk mixture alternately.

Pour in melted chocolate and mix the butter by hand.

Pour the batter into prepared load pan and baked for 55 minutes.

Remove from overn and let it cool down before slicing.