Heat oven to 350 degrees. Place oats in a blender or food
processor and blend until very fine.
With an electric mixer, beat the butter and both sugars until
light (about 3 minutes). Add the eggs one at a time and beat 20
seconds after each one is added. Add the vanilla and beat for 15
seconds to blend.
Whisk together the flour, processed oats, baking powder and
salt. With a large rubber spatula or wooden spoon, blend the dry
ingredients into the butter mixture. This will be difficult
since the batter is very stiff.
Add the chocolate chips, chopped chocolate and nuts.
Form dough into balls about 2 inches in diameter and place on a
baking sheet covered with parchment paper. Bake 14 to 15 minutes
in the middle oven rack or until the bottoms are browned.
The cookies will not spread very much and should still feel a
bit soft when you take them out, looking even undercooked. They
will harden as they cool. Do not overcook them or they will
become very hard and dry when they cool.
After you remove them from the oven and let them cool for 2
minutes on the baking sheet before removing to cooling racks.
Cool at least 30 minutes before serving.
Makes 30 to 36 very large, very memorable, cookies.