Preheat oven to 375 degrees F (190 degrees C).
Thoroughly cream together shortening, sugars, eggs and vanilla.
In a separate bowl, mix togerther the dry ingredients, except the candies. Add to creamed mixture and mix well.
Stir in 1/2 cup M & M's. Mix well. Drop by teaspoon unto cookie sheets and decorate with remaining M & M's. Bake for 10 - 12 minutes.
Recipe from CookieRecipe.com