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 light and fluffy, about 3 to 4 minutes.
04 - Add eggs one at a time, beating well after each addition. Mix in the vanilla extract until fully incorporated.
05 - With the mixer on low speed, add the dry ingredients in three parts, alternating with the milk, beginning and ending with the flour mixture. Mix until just combined and do not overmix.
06 - Pour the batter into the prepared loaf pan and smooth the top evenly with a spatula.
07 - Bake for 55 to 65 minutes, or until a toothpick inserted into the center comes out clean.
08 - Let the cake cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.