-Meanwhile, in a 2 quart bowl, combine the heavy cream, semisweet chocolate chips and the milk chocolate chips. Heat in a microwave oven on high for 1-1/2 to 2 minutes, or until melted and smooth when stirred. Remove, and stir in the 1 tbsp of Kahlua.
-Reserve 3/4 cup of the ganache for frosting on the sides of the cake. To the rest of the still warm ganache, add the turtle (or chocolate bar pieces), stir well. Some of the pieces will remain chunky while others pieces will melt right in, yum!! Set aside to cool.
-When the ganache is firm enough to spread, fill stacked cake layers with half of the ganache mixture. Spread remaining mixture evenly over top of cake. Frost sides of cake with the reserved 3/4 cup chocolate mixture. Sprinkle the chopped 1/4 cup peanuts around the edge of the cake to make a border and around the sides.
-Refrigerate cake for at least 1-1/2 to 2 hours prior to serving.
Grab yourself a milk and enjoy