Mrs. Fields Cookies

1 pound real butter
2 cups sugar
2 cups brown sugar
2 teaspoons vanilla
4 eggs
2 teaspoons soda
2 teaspoons baking powder
1 teaspoon salt
4 cups flour
5 cups oats
16 ounces chocolate chips

Cream butter, sugar, brown sugar, and vanilla. Blend in eggs. Mix in soda, baking powder, and salt. Mix in flour, oats, and chocolate chips. Bake at 400° for 6-7 minutes.