Preheat your oven to 375°. Line several baking sheets with parchment paper., Combine the butter, granulated sugar, and brown sugar until smooth., Add the eggs one by one, then add the vanilla., In a blender or food processor, grind oats until they're a fine powder., Add oats, flour, salt, baking powder, and baking soda to butter/sugar mixture; mix well., Stir in nuts, grated chocolate and chips., Drop dough by tablespoonfuls onto your baking sheet (a tablespoon cookie scoop makes short order of this job). Gently flatten each dough ball with the palm of your hand to about 1/2" thick., Bake the cookies for 12 to 15 minutes, or until they're beginning to brown. Remove them from the oven, and cool right on the pan., Storage instructions: Cookies will keep for up to a week in a closed container; freeze for longer storage.