It's not true that Neiman Marcus charged a customer $250 for this recipe. Check out the story on Snopes. But it is true that these are the best cookies EVER. These cookies are expensive, time consuming to make, and the recipe makes enough for a small army. Don't even consider making these unless you are planning to share with a large crowd or plan to eat them over the course of a few months (kidding). The recipe will yield about 115 2-3" cookies.
This is what you will need:
1 lb. unsalted butter, softened
2 cups sugar
2 cups brown sugar
2 tsp. vanilla
4 cups flour
5 cups *blended oatmeal (measure and blend to a fine powder)
2 tsp. baking powder
1 3/4 tsp. baking soda
1 tsp. salt
24 oz. chocolate chips (I use 1 pkg. semi-sweet and 1 package milk chocolate)
1 Lindt 3.5 oz. dark chocolate bar with sea salt, grated
3 cups chopped nuts
You will need a VERY large bowl. Cream the butter and both sugars. Add eggs and vanilla mix well. Add flour, oatmeal, salt, baking powder and soda. Mix well. Add chocolate chips, grated chocolate bar and nuts. Roll into 1" balls and place two inches apart on a cookie sheet. Bake for 15-20 minutes at 375.