Cream together the butter and both sugars. Then add the eggs and vanilla.
In a separate bowl, mix together flour, oatmeal, salt, baking powder, baking soda. Mix together all ingredients. Then add the chocolate chips, walnuts and grated chocolate bar. Add the dry ingredients to the wet ingredients and mix until fully incorporated. Bake on ungreased cookie sheet. Make even golf size cookies and space them 2" apart. Put them into a 375 degree F preheated oven and bake for 6 minutes. This recipe should yield 112 cookies.