Combine flour, baking soda and salt in small bowl; set aside. Microwave 1 cup chocolate chips in small microwave-safe bowl at HIGH, stirring occasionally, 30 seconds or until melted.
Beat eggs, sugar, Hellmann's® or Best Foods® Real Mayonnaise and vanilla in large bowl with electric mixer at high speed 2 minutes. Reduce speed to low. Beat in melted chocolate, then flour mixture just until blended. Stir in remaining chocolate chips and nuts. Drop by rounded teaspoonfuls onto ungreased baking sheets, 2 inches apart.
Bake 8 minutes or until lightly browned. Let stand 2 minutes on wire rack; remove from sheets and cool completely.