Preheat the oven to 375 degrees.

In a large bowl cream the butter and sugar. Add in the egg, vanilla, and milk and mix well.

In a medium bowl combine the flour, baking soda, and salt. Mix well.

Add the dry ingredients to the butter mixture and mix well.

Stir in the s'mores pieces and chocolate chips.

Drop the cookie batter onto baking sheets by tablespoon and place them 2 inches apart.

Bake for 10 minutes then remove from oven and allow to cool for 1 minute before removing to a wire rack.