Preheat the oven to 180°C /356°F.
Grease and line an 8” by 8” square tin with baking paper/parchment paper.
In the meanwhile mix milk with lemon juice and keep aside for 5 minutes.
Take a bowl, sift plain flour, baking powder, cocoa powder. Add salt to the bowl and again sift one more time. Keep aside.
Then melt butter in a microwave or on a stovetop.
In a bowl mix melted butter and brown sugar. Whisk until sugar melts.
Then add the milk mixture and whisk until everything is well combined, then add vanilla extract and whisk.
After that add the sifted plain flour, cocoa powder, baking powder mixture and whisk slowly until the batter is thick and nice.
Transfer the batter into the lined tin and smooth the top with a spatula.
Add the dark chocolate chips on the top and press lightly.
Bake in the preheated oven for 30-40 mins.
Then allow it to cool completely or you can cover it with cling film and leave on the counter top overnight. So that when we slice the pieces they will come perfectly.
Remove the lining paper and slice them in desired pieces, enjoy a soft and delicious eggless brownie.