Combine flour, soda, cinnamon and salt in small bowl.
Beat butter, brown sugar, granulated sugar and peanut butter in large mixer bowl until creamy.
Beat in egg and vanilla.
Gradually beat in flour mixture.
Stir in morsels and peanuts.
Drop dough by rounded tablespoon onto ungreased baking sheets.
Press down slightly to flatten into 2” round circles.
Bake in preheated 375° oven for 7 – 10 minutes or until edges are set but centers are still soft.
Let stand for 2 minutes; remove to wire racks to cool completely.