Preheat Oven to 250.
Using a mini muffin/cupcake pan, spray with a non-stick spray.
Place flour, baking powder, and salt in a bowl and set aside.
In a large bowl, cream sugar and butter together until light and fluffy.
Add eggs and vanilla. Mix for about 30 seconds.
Slowly add in milk and flour mixture in an alternating pattern. Mix together thoroughly.
Pour batter into pan.
Bake for approximately 15 - 20 minutes or until toothpick inserted into center of cupcake comes out clean.
Cool for about 10 minutes and then remove mini cakes to a wire rack to allow to cool completely.