Preheat the Oven: Set your oven to 350°F (175°C). Line the bottom of the cake pan with parchment paper and grease the sides lightly with butter.
Whipping Butter and Sugar: Begin by placing the softened butter and granulated sugar into a large bowl. Use an electric mixer to whip the ingredients together until they become light and airy.
Incorporating Eggs: Introduce the eggs one at a time into the mixture, beating well after each addition to ensure they are thoroughly mixed in before proceeding to the next.
Mixing Dry Ingredients: In a different bowl, combine the flour, baking powder, and salt by whisking them together to blend evenly.
Mix Wet and Dry Ingredients: Alternately add the dry ingredients and the milk to the butter mixture, starting and ending with the dry ingredients. Stir in the vanilla extract.
Preparing to Bake: Transfer the cake mixture into your greased baking pan, leveling the surface with a spatula.
Bake: in the oven for 60-70 minutes, or until a toothpick inserted into the middle of the cake comes out clean without any wet batter.
Cool: Allow the cake to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.