2 Pounds Powdered Sugar
1 1/2 Cups Peanut Butter (Creamy or Crunchy)
1 stick of Butter
2 T-spoons vanilla
1/2 Cup Milk
Put all ingredients except milk and vanilla in a big, microwavable bowl.  Microwave on High for 2 minutes.  Stir in milk and vanilla.  Pour in pan and refrigerate for 1 hour