Pre heat the oven to 180°c.

Prepare tins.

Put butter and sugar in a large bowl and cream with a mixer.

Add eggs one at a time, add milk and vanilla and mix until combined.

Add the flour, baking powder, salt and mix until well combined.

Pour the batter in a baking dish and bake in the oven for about 40 minutes, or until a skewer comes out clean.

Cool completely before frosting.