Preheat oven to 375 degrees F (190 degrees C).

Mix flour, baking soda and salt in a small bowl.

Beat butter, sugars and vanilla in a huge bowl. Beat eggs WELL and add to flour mixture. Mix flour mixture into butter mixture and stir well.

Add the semi-sweet chocolate pieces and walnuts. Mix well.

Drop by rounded tablespoons on ungreased baking sheets. (I lightly push about 4-6 plain M and M's on top of each cookie for flavor and color.)

Bake for 11 minutes. Don't overbake or they get hard. Let cool on wire racks. Enjoy!