Preheat the oven to 180°C (350°F) and prepare your cake tin.
In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy.
Add the eggs one at a time, mixing well after each addition.
In a separate bowl, whisk together the flour, baking powder, and salt.
Gradually add the dry ingredients to the wet mixture, alternating with the milk, and mix until just combined.
Gently fold in the soaked sultanas and vanilla extract.
Pour the batter into the prepared cake tin and smooth the top with a spatula.
Bake in the preheated oven for 40-45 minutes or until a toothpick inserted in the center comes out clean.
Allow the cake to cool in the tin for 10 minutes before transferring it to a wire rack.
Once completely cooled, slice and enjoy your Buttery Sultana Cake Bliss.
