Cream butter, sugar and brown sugar. Add eggs, milk, and vanilla, beating until fluffy.
In a separate bowl, combine flour, baking soda, salt and baking powder. Gradually add this to the butter mixture, mixing well after each addition. Stir in oats, chocolate chips and pecans.
Drop dough onto a baking sheet in large tablespoon size amounts (use parchment paper if you are smart…easy clean-up). Bake at 350 degrees for 12 minutes, or until cookies are pretty-pretty.