  
    Place 15-20 Oreos in a plastic zipper-lock or storage bag.  
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    With a meat mallet or rolling pin crush into (3)medium-large pieces.  Set aside. 
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    In the bowl of an electric mixer add the cream and powdered  sugar.  
       
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    (5)Level the cooled cakes by cutting off any un-even parts on  the top with a serrated knife.  Cut each  round in half so you have four layers.   Place the bottom layer on a cake plate.   Top with frosting.  Top with a  round of cake and repeat.   | 
      
      Cover the cake  completely with the frosting.  
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    (6)Decorate  with remaining oreos.    | 
  
  
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       Oreo Frosting 
3 c heavy whipping cream 
1/3 c powdered sugar 
30 Oreos 
              Place 15-20 Oreos in a plastic zipper-lock or storage bag.  With a meat mallet or rolling pin crush into (2)medium-large pieces.  Set aside. 
         
        In the bowl of an electric mixer add the cream and powdered  sugar.  Beat until (3)stiff.  
        Add the oreo pieces to the whipped cream and gently  stir.  Don’t over-mix of the frosting  will turn brown.  Set aside. 
         
        Chocolate Cake 
         
½ c (4 oz) unsalted butter (at room temperature or slightly  cold) 
1 c (6.5 oz) light brown sugar packed 
1 c (7 oz) sugar 
2 large eggs 
	  1 T vanilla 
5 oz unsweetened chocolate squares 
2 c + 2 T (10.5 oz) all-purpose flour 
1 ½ t baking soda 
1 ½ t baking powder 
1 t salt 
	  3/4 cup (6 oz) milk 1/4 c (2 oz) sour cream 
1 c (8 oz) boiling water 
 
Pans 
Preheat oven to 350 degrees.  
 
Prepare two 8 or 9 inch round cake pans in the following  way.  Place one of the pans on top of a  piece of parchment or waxed paper.  Trace  around the bottom with a pen, or slide a scissors around the bottom to score  the paper.  Cut out and repeat.  Spray the bottom of the pan with cooking  spray and place the prepared paper inside.   Smooth out any air-pockets and seal around the edges.  Spray and flour the paper and edges.   Shake out any excess.  Set aside.   
 
Cake  
In a medium bowl stir flour, baking soda, baking powder, and  salt.  Set aside. 
In a small microwave proof bowl, melt chocolate in microwave  for 1 minute.  Stir and microwave an additional  30-60 seconds.  Stir until completely  melted.  Set aside.  
 
Measure the milk and set aside.   
 
Measure the water and heat in microwave until boiling 1-2  minutes.  Set aside. 
 
In the bowl of an electric mixer beat the butter 3-4 minutes  with the whisk attachment.  Add the  sugars.  Beat another 3-4 minutes.  Add the eggs and vanilla and beat until eggs  are incorporated.  Turn the mixer off and  add the melted chocolate.  Mix until  combined.   With the mixer running add  1/3 of the flour mixture, then 1/3 of the milk.   Keep alternating until it is all added.   Beat on medium/high speed for two minutes.  Remove bowl from mixer and gently stir in the  boiling water until the batter is smooth.   Pour into prepared pans.  Bake 30  minutes.   
 
Test to see if it’s done by  gently touching the middle of the cake. It should spring back, but just  barely.  If it sinks it needs a few more  minutes.  If it is firm, it’s  overdone.  Remove from oven and set on  cooling racks.  Gently run a knife around  the cake to loosen it from the sides.   Let cool 10 minutes.  Run the  knife around the edge again.  Flip the  pan over and release the cake onto a cooling rack.  Remove the parchment or waxed paper.  Cool completely.   
      Assembly 
        Level the cooled cakes by cutting off any un-even parts on  the top with a serrated knife.  Cut each  round in half so you have four layers.   Place the bottom layer on a cake plate.   Top with frosting.  Top with a  round of cake and repeat.  Cover the cake  completely with the frosting.  Decorate  with remaining oreos.  To half the Oreos,  gently cut them with a serrated knife.     
         
        Slice and serve. Refrigerate remaining cake. Bring to room temperature before serving again.  
         
        Notes 
        1. If the mixer is running when the chocolate is added it will splatter onto and stick to the sides of the bowl. It will be harder to mix in later and some of it will be wasted.  
        2.  Don't take it out of the pan right away. It continues to bake when it's removed from the oven and needs this additional time in the pan. Also it's likely to fall apart if it's removed too soon. Don't wait longer than 10 minutes however or it can become stuck to the pan and difficult to remove.  
        3. Don’t crush too  much or you will get a lot of crumbs.  This  will turn the frosting brown. 
        4. If the cake isn't leveled it's likely to lean and not look as good.  
        5. Beat it enough so it holds stiff  peaks, but don’t overbeat it or it will be ruined.  
        6.  To half the Oreos,  gently cut them with a serrated knife. 
         
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