Beat butter with sugar until smooth and fluffy.

Mix in eggs one at a time.

Add in milk and vanilla and mix until completely blended.

Blend in flour and baking powder.

Pour 1/2 cup batter for each cookie onto parchment lined baking sheet and spread to 5 inch round with a small offset spatula.

Bake for 15 minutes at 375 degrees.

Don't brown cookies.

Allow cookies to cool on the baking sheet completely. They will not transfer easily, they are a cake like cookie.