01 - Preheat oven to 350°F. Grease and flour a 9x5-inch loaf pan or line with parchment paper.
02 - In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
03 - In a large mixing bowl, beat the softened butter and 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. Blend in the vanilla extract until evenly distributed.
05 - With the mixer on low speed, add the dry ingredients in three additions, alternating with the milk in two additions, beginning and ending with the flour mixture. Mix until just combined without overmixing.
06 - Pour the batter into the prepared loaf pan and smooth the surface evenly with a spatula.
07 - Bake for 55 to 65 minutes, or until a toothpick inserted into the center emerges clean.
08 - Allow the cake to cool in the pan for 10 minutes, then turn out onto a wire rack to cool completely before slicing.