To make ground oatmeal, add small amounts at a time to a blender until all is powder.
Cream butter and sugars. Add eggs and vanilla. Mix together flour, oatmeal, salt, baking powder and baking soda then add to butter/sugar mixture. Mix well and add chocolate and nuts. Make golf ball sized cookies and place 2 inches apart on ungreased cookie sheet. Bake at 375 degrees for 16 minutes.