Adapted from Joy of Baking Website. Makes 9 Medium sized brownies.

Ingredients -
60 gms butter (Amul salted one is fine too) - cut in cubes
2 eggs
100 gms ground sugar
1/2 tsp Vanilla essence
50 gms Maida (Refined flour)
1/2 tsp Baking powder
180 gms semi-sweet Dark Chocolate (I used Morde Dark Chocolate) - Chop coarsely
Pinch of salt (skip if using a salted butter like Amul)
1/2 cup walnuts (optional) - coarsely chopped

1. Preheat oven to 180 C.
2. Melt the chocolate and butter in a large bowl placed over a saucepan of simmering water. Remove and set aside to cool to room temperature (can pop in the fridge for 5 mins in between).
3. Whisk the eggs, sugar, and vanilla extract until frothy (by hand or an electric beater).
4. Add the eggs mixture to the melted chocolate mixture and fold well. Mix the flour, baking powder, and salt (if using) and then fold into the chocolate mixture until combined.
5. Oil a nonstick baking pan and line with butter paper and pour the batter in the pan.
6. Bake for about 30-35 minutes till the brownies are just starting to pull away from the sides of the pan and the top is dry and slightly cracked.
    Remove from oven and let cool for a few hours until brownies become firm enough to cut.