Preheat the oven to 180°C/350°F.
Grease and line a 14×6.5 cm loaf pan with parchment/ butter paper.
In a small bowl mix milk, eggs, and vanilla extract. Set it aside.
In a bowl sift in flour, cornflour, baking powder, and salt.
Add sugar and give it a mix
Into the dry ingredients add butter and ⅓rd part of the milk-egg mixture. Beat on a low speed till ingredients have just been incorporated.
Add the rest of the milk-egg mixture in two parts. Beat on low speed after each addition only till everything is properly mixed. (do not over-mix).
Pour the batter in to loaf pan.
Bake at 180°C/350°F for 30-40 minutes or until a skewer comes out clean.
After 5-10 minutes take the cake from the pan and place it on a wire rack to cool completely.
Dust with sugar powder before serving. (optional)