1Preheat your oven to 180°C (350°F) and line a baking tray with parchment paper.
In a large mixing bowl, beat the eggs until they are light and fluffy.
Gradually add the sugar to the eggs, continuing to beat until the mixture is smooth and creamy.
Sift the self-raising flour and chocolate powder into the egg and sugar mixture, folding gently to combine.
Slowly add the milk, stirring until the batter is smooth and well-mixed.
Pour the batter into the prepared baking tray, spreading it evenly.
Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs.
Allow the brownies to cool in the tray before cutting them into squares and serving.