Preheat your oven to 350°F (175°C).
Grease and flour three 8-inch round cake pans.
In a large bowl, whisk together flour, sugar, baking powder, and salt until well combined.
In another bowl, beat softened butter until creamy.
Gradually add sugar while mixing until light and fluffy—about 3 minutes.
Incorporate eggs one at a time into the butter mixture.
Slowly add milk while mixing just until combined.
Gently fold in your dry ingredients using a spatula until just combined.
Divide batter evenly among prepared pans and bake for 25-30 minutes or until a toothpick comes out clean from center.