Preheat the oven to 350°F (175°C).

Grease the 9-inch round cake pans and line the bottoms with parchment paper.

In a mixing bowl, whisk together the flour, baking powder, and salt.

In another bowl, beat the softened butter and sugar until light and fluffy.

Add the eggs one at a time, mixing well after each addition, followed by the vanilla extract.

Gradually add the dry mixture to the butter mixture, alternating with the milk.

Divide the batter evenly between the prepared pans.

Bake for 25-30 minutes, or until a toothpick inserted comes out clean.

Let the cakes cool in the pans for 10 minutes before transferring to a wire rack to cool completely.