Preheat your oven to 350°F (175°C).

In a mixing bowl, combine the softened butter and sugar until light and fluffy.

Incorporate the eggs one at a time, beating well after each addition.

Add the pure vanilla extract and mix until incorporated.

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

Gradually add the dry mixture to the wet ingredients while alternating with the milk.

Grease your baking pan and pour the batter in evenly.

Place the pan in the oven and bake for 30 minutes or until a toothpick comes out clean.