01 - Preheat oven to 350°F (175°C). Grease and flour a 9x5-inch loaf pan, or line with parchment paper for easy removal.
02 - In a medium bowl, whisk together the all-purpose flour, baking powder, and salt. Set aside.
03 - In a large mixing bowl, beat the softened butter and granulated sugar with an electric mixer on medium speed until pale, light, and fluffy, approximately 3 to 4 minutes.
04 - Add the eggs one at a time, beating thoroughly after each addition until fully incorporated. Blend in the vanilla extract.
05 - With the mixer on low speed, add the dry ingredient mixture in three additions, alternating with the milk in two additions, beginning and ending with the flour. Mix until just combined and avoid overmixing.
06 - Pour the batter into the prepared loaf pan and smooth the surface evenly with a spatula.
07 - Bake on the center rack for 55 to 65 minutes, or until a toothpick inserted into the center of the cake comes out clean.
08 - Allow the cake to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.