Best Oatmeal Cookies


1 stick butter, softened
1 egg
1 1/4 cup flour
1 cup packed brown sugar
1/2 tsp baking powder
1/2 tsp baking soda
1 tsp vanilla
1/4 tsp salt
1 T milk
1 cup oats

Bake 8 min at 350 degrees
(will still look gooey, but will harden up once cooled-flatten with spatula)