In a separate bowl, sift together the all-purpose flour, baking powder, and salt. Gradually add the dry ingredients to the wet mixture, mixing on low speed until just combined.
Stir in the vanilla extract to impart a delightful aroma and depth of flavor to the pound cake batter.
Gradually add the whole milk to the batter, mixing until smooth and well incorporated. Be careful not to overmix, as this can lead to a tough cake texture.
Pour the batter into the prepared loaf pan and smooth the top with a spatula. Bake in the preheated oven for 60-70 minutes, or until a toothpick inserted into the center comes out clean.
Allow the pound cake to cool in the pan for 10-15 minutes before transferring it to a wire rack to cool completely.