Double Good Fudge
["vegetable cooking spray", "1 (16 oz.) pkg. powdered sugar, sifted", "1 c. crunchy peanut butter", "1/4 c. plus 2 Tbsp. milk", "1/2 tsp. vanilla extract", "1/2 c. butter or margarine", "1 (16 oz.) pkg. powdered sugar, sifted", "1/4 c. milk", "1/2 c. cocoa", "1/2 c. chopped peanuts", "1 tsp. vanilla extract"]
["Coat a 9-inch square pan with cooking spray.", "Line bottom of pan with wax paper; coat with cooking spray.", "Set pan aside."]
["vegetable cooking spray", "powdered sugar", "crunchy peanut butter", "milk", "vanilla extract", "butter", "powdered sugar", "milk", "cocoa", "peanuts", "vanilla extract"]