Preheat your oven to 350°F (175°C).

Line a muffin tin with cupcake liners.

In a large bowl, cream together the softened butter and sugar until light and fluffy.

Add eggs one at a time, mixing well after each addition.

Stir in the vanilla extract.

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

Gradually add the dry ingredients to the wet mixture, alternating with milk.

Mix until just combined; do not overmix.

Pour the batter into the prepared cupcake liners, filling each about two-thirds full.

Bake for 15-20 minutes, or until a toothpick comes out clean.

Allow to cool before frosting and decorating.