Pre heat oven on 200 c for 10 minutes .
Then prepare cake loaf tin with butter paper or foil
Take a Microsave bowl ,add chopped dark chocolate and butter and microwave it for 50 seconds or till melt..
Then stir melted chocolate and butter till combine
Then add sugar and mix well ..now add egg and whisk well till well combined..
Then add flour ..mix well with spatula to make thik brownie batter..
Pour brownie batter into the cake tin.
Keep cake tin in the preheated oven and bake it on 180 c for 15 minutes
Within this 15 minutes we need to make Butter cake batter
Now take a bowl add soft butter and sugar..whisk till fuffy .
Then add eggs one by one ..whisk till creamy
Then add vanilla essence and mix well.
Now add flour and baking powder (pass through the sieve)..
Now mix dry ingredients with wet ingredients with spatula.
Add milk little by little to make semi thick batter..
Now after 15 minutes take out brownie from oven.
Then immediately pour butter cake batter over the brownie..level it with spatula..tap twice
Then keep the cake tin into the oven and bake it on 180c for 40 - 45 minutes..
After 40 minutes insert a toothpick or knife into the cake
If it comes out clean means its done or if not then bake it for few more mints..
