Step 1

Add butter and chocolate in a microwave safe bowl. Heat in the microwave for 20 - 30 seconds. Stir the melted butter and chocolate with a spatula to make sure the mixture is silky smooth and lump free.

Step 2

Add yogurt, sugar, and vanilla essence in the liquid chocolate mixture. Whisk for 2 - 3 minutes to combine all the ingredients nicely. Once combined, set the bowl aside.

Step 3

Sift the flour, baking powder, cocoa powder, and coffee powder together in a separate bowl. Mix using a spatula.

Step 4

Add the sifted flour mix into the liquid chocolate in small batches. Gently cut and fold the batter using a spatula untill all moistened and combined well. Do not mix the batter for too long.

Step 5

Add chopped walnuts and fold them into the batter.

Step 6

Preheat the oven to 180 degree celcius. Grease an 8 inch square tin and line it with a parchment paper.

Step 7

Pour the brownie batter into the prepared tin and bake for 20 - 25 minutes. Check the brownies for doness via inserting a toothpick after 20 minutes.

Step 8

Remove from the oven and place on a wire rack to cool. Cut into squares and serve hot with vanilla ice cream.