Preheat oven to 180 degrees Celsius
In a bowl sieve and mix all ingredients under DRY INGREDIENTS
For WET INGREDIENTS, in a bowl add butter, condensed milk,vanilla essence and sugar. Whip nicely.
To this add yoghurt and blend again.
Gradually add dry ingredients to wet ingredients bit by bit.
Add coffee portion half at a time
Adjust consistency with hot water if needed.
Pour batter in.a greased tray and keep it in preheated oven for 25 minutes at 180 degrees Celsius. .
Check for doneness with toothpick.
If done take out from oven. Cool., cut and enjoy.