last batch of cookies side by side above.
beat the butter and sugars until creamy. add eggs one at a time, mixing well.
beat in the vanilla, flour, baking powder, baking soda and oats.
shape dough into golf ball sized cookies and place 3 inches apart on baking sheet lined with parchment paper.
bake for about 10 minutes on 350 f.
cool on baking sheets for 10 minutes then transfer to wire rack. 