heat oven to 350°F. grease 13x9x2 inch pan

beat melted butter, sugar, eggs and vanilla in large bowl with electric mixer on medium speed until well blend. add flour, cocoa and milk; best until blended. stir in 1 cup nuts. spread in prepared pan.

bake 25-30 minutes or just until edges begin to pull away from sides of pan. cool completely on wire rack.

melt 1/2 cup butter and peanut butter chips in medium saucepan over low heat, stirring constantly. add sweetened condensed milk, stirring until smooth, pour over baked layer.

place chocolate chips in small microwave-safe bowl. microwave on MEDIUM for 45 seconds or just until chips are melted when stirred. drizzle bars with melted chocolate, sprinkle remaining 1/4 cup nuts. refrigerate 1 hour or until for,. cut into bars and enjoy.