1Heat oven to 375°F. Beat peanut butter, sugars, butter and eggs in large bowl with electric mixer on medium speed, or mix with spoon. Stir in flour and baking soda. Stir in peanuts (dough will be stiff).
2Drop dough by rounded tablespoonfuls about 2 inches apart onto ungreased cookie sheet. Bake 8 to 10 minutes or until light brown. Cool 1 to 2 minutes; remove from cookie sheet to wire rack.