1 c. Reese's peanut butter chips
1 c. Hershey's semi-sweet chocolate chips
1 (14 oz.) can Eagle Brand milk (sweetened condensed)
1 tsp. vanilla extract

Line 8-inch square pan with foil. In small microwave safe bowl, melt peanut butter chips and 2/3 cup sweetened condensed milk. Microwave at High 1 to 1 1/2 minutes; stir until chips are melted and mixture is smooth. Stir in 1/2 teaspoon vanilla. Spread into 8-inch pan. Melt chocolate chips and remaining milk 1 to 1 1/2 minutes on High. Stir until chips are melted, add 1/2 teaspoon vanilla. Spread evenly.