Step 1: Preheat the Oven: Preheat the oven to 350F (175C). Grease and flour a 9-inch round cake pan. The oven must be at the correct temperature before baking.
Step 2: Combine Dry Ingredients: In a medium bowl, whisk together the flour, baking powder, and salt. Ensure the dry ingredients are evenly distributed.
Step 3: Cream Butter and Sugar: In a large bowl, cream together the softened butter and granulated sugar until light and fluffy. This step incorporates air into the mixture.
Step 4: Beat in Eggs and Vanilla: Beat in the eggs one at a time, then stir in the vanilla extract. Each egg should be fully incorporated before adding the next.
Step 5: Alternate Adding Dry and Wet Ingredients: Gradually add the dry ingredients to the wet ingredients, alternating with the milk, beginning and ending with the dry ingredients. Mix until just combined. Avoid overmixing.
Step 6: Pour into Pan and Bake: Pour the batter into the prepared cake pan and spread evenly. Bake for 30-35 minutes, or until a wooden skewer inserted into the center comes out clean.
Step 7: Cool the Cake: Let the cake cool in the pan for 10 minutes before inverting it onto a wire rack to cool completely. Ensure the cake is completely cooled before frosting.
Tips: For a richer flavor, substitute melted butter for the softened butter. For a lighter cake, use cake flour instead of all-purpose flour. Milk may be substituted with buttermilk to add subtle flavor and moistness.