1 c. Reese's Peanut Butter Chips
1 (14 oz.) can Eagle Brand sweetened condensed milk (NOT evaporated milk), divided
1 tsp. vanilla extract, divided
1 c. Hershey's 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 at HIGH (100%) 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.