Best Peanut Butter Cookie Recipe

I'm not sure where I found this recipe.  I'm sure it was online somewhere but my recipe says 'author unknown'...  

Peanut Butter Cookies

1/2 c Brown Sugar

1/2 c White Sugar

1 Egg

1/2 c Margarine (softened)

1 t Vanilla

1/2 c Peanut Butter (smooth)

1 1/2 c  Flour

1 t baking soda

1/2 t salt

1 C Reese's Pieces

Preheat over to 350 degrees - line baking pan with parchment paper.

In large bowl mix together until light and fluffy:

Brown Sugar

White Sugar

Margarine

Add in and mix until incorporated:

Egg

Vanilla

Slowly add in

Flour

Baking Soda

Salt

Stir in Reese's Pieces

Scoop onto parchment paper and press down slightly with a fork twice.  Bake 10-12 min. 

These are so good I have to freeze them before the family devours them or else they won't make it till this weekends 'Tween Spa Party'

 Even the batter is good!