Preheat the Oven:

Preheat your oven to 350°F (175°C).

Grease and flour an 8-inch round cake pan or line it with parchment paper.

Cream Butter and Sugar:

In a large bowl, beat the softened butter and sugar together until light and fluffy (about 2–3 minutes).

Add Eggs and Vanilla:

Beat in the eggs one at a time, then add the vanilla extract. Mix until smooth.

Mix Dry Ingredients:

In a separate bowl, whisk together the flour, baking powder, and salt.

Combine Wet and Dry:

Add the dry ingredients to the butter mixture in batches, alternating with the milk.

Mix just until combined—do not overmix.

Bake the Cake:

Pour the batter into the prepared pan and smooth the top.

Bake for 30–35 minutes, or until a toothpick inserted in the center comes out clean.

Cool and Serve:

Let the cake cool in the pan for 10 minutes, then turn out onto a wire rack to cool completely.

Dust with powdered sugar before serving.