Step 1

Preheat oven to 375°F. Mix flour, baking soda and salt in medium bowl; set aside.

Step 2

Beat butter, peanut butter and sugars in large bowl with electric mixer on medium speed until light and fluffy. Add egg and vanilla; mix well. Gradually add flour mixture, mixing well after each addition. Stir in chocolate and peanuts. Drop heaping tablespoonfuls of dough, 2 inches apart, onto ungreased baking sheets.

Step 3

Bake 9 to 11 minutes or until lightly browned. Cool on baking sheets 1 minute. Remove to wire racks to cool completely.