Preheat oven to 180°C and line a brownie tin with baking paper.
In a double boiler, melt the chocolate. Set aside.
Beat together the sugar, milk, eggs and oil for roughly 1 min or so until well combined.
Stir in the melted chocolate, as well as the rest of the ingredients (protein powder, coconut sugar, cocoa powder, salt, baking powder, vanilla)
Pour batter into prepared tin, and decorate the top with optional chocolate chips.
Bake for roughly 25-35 mins until slightly under done. Take out of oven and allow to cool, brownies should set while they cool.