Double Decker Fudge

Directions

1. 1
   In a 2-cup glass measure with handle, combine peanut butter chips and 2/3 cup sweetened condensed milk.
2. 2
   Cook on 100% power (High) in microwave for 1 to 1 1/2 minutes, stirring after 1 minute, until chips are melted and mixture is smooth.
3. 3
   Stir in 1/2 teaspoon vanilla; spread evenly into foil lined 8-inch square pan.