Creamy Double Decker Fudge

Always a hit and very simple to make!

1 cup peanut butter chips
1 (14 oz.) can sweetened condensed milk (not evaporated)
1 teaspoon vanilla, divided
1 cup semi-sweet chocolate chips

Line 8 inch square pan with foil. In small microwave-safe bowl, place peanut butter chips and 2/3 cup sweetened condensed milk. Microwave on high 1 to 1 1/2 minutes, stirring after 1 minute, until chips are melted and mixture is smooth when stirred. Stir in 1/2 teaspoon vanilla; spread evenly into prepared pan. In microwave-safe bowl, place remaining sweetened condensed milk and chocolate chips; repeat above microwave procedure. Stir in remaining 1/2 teaspoon vanilla; spread evenly on peanut butter layer. Cover; chill until firm. Cut into 1-inch squares. Cover; store in refrigerator.