Preheat the oven to 350°F (175°C) and prepare your cake pans.
In a large mixing bowl, cream the butter and sugar until light and fluffy.
Add eggs one at a time, mixing well after each addition.
Mix in the vanilla extract just until combined.
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.
Pour the batter into the prepared cake pans and smooth the tops.
Bake for 25-30 minutes or until a toothpick inserted into the center comes out clean.
Let the cakes cool in the pans for 10 minutes before transferring to wire racks.
Frost and decorate as desired once completely cooled.
