Heat oven to 350°F. Spray 13x9-inch pan with nonstick cooking spray.
In large bowl, combine all base and topping ingredients; mix at low speed until crumbly. Reserve 2 cups of crumb mixture for topping. Press remaining crumb mixture in bottom of sprayed pan to form base.
In small bowl, combine condensed milk, peanut butter and vanilla; mix until well blended. Pour mixture evenly over base. Sprinkle with chocolate chips and peanuts. Sprinkle reserved crumb mixture over top; press down gently.
Bake at 350°F. for 25 to 30 minutes or until golden brown. Center will not be set. Cool 1 hour 15 minutes or until completely cooled. Cut into bars.