01 -
In a microwave-safe bowl, combine butter, cocoa, brown sugar, and milk. Microwave on high until mixture boils, about 2 minutes. Stir in confectioners' sugar and vanilla. Pour into a greased 8-inch square dish.
02 -
In another microwave-safe bowl, heat caramels and water on high until melted, about 75 seconds. Stir in peanuts and spread evenly over the chocolate layer.
03 -
Microwave semisweet and milk chocolate chips on high until melted, about 30 seconds. Spread evenly over the caramel layer.
04 -
Chill until firm in the refrigerator. Cut into 1-inch squares and serve.