Oreo Heath Bar Cake


  • 1 box Duncan Hines Chocolate Fudge cake mix
    • 3 large eggs, room temperature
    • 1 cup water
    • 1/3 cup vegetable/canola oil
    • 1 tsp vanilla
  • 30 oreos
  • 1 bag of Heath bar Pieces
  • 4 full sized Heath bars
  • Vanilla Buttercream frosting
    • 6 cups confectioner's sugar
    • 2 cups softened butter
    • 2 tsp vanilla
    • 5 Tbsp half and half

Written Method:

Prep.  Take out your eggs so they can come to room temperature.  Sometimes I cheat and heat up a cup of water in the microwave and let them sit in the warm water while I get everything else out.  Room temperature eggs will give you a fluffier cake than cold eggs (won't rise as much).  Prepare your pans with cooking spray sprinkled with granulated sugar.  Add a circle of parchment paper to the bottom of each to ensure that your cakes won't stick.  Preheat the oven to 325 F if using non-stick pans.

Mix.  For the cake, I used Duncan Hines (my all time favorite brand) chocolate fudge cake mix.  After pouring the prepared batter into the pans, I gently mixed in two rows (about 30) of Oreos that I roughly chopped into quarters. 

Bake.  Bake at 325 degrees F for 24 minutes.  You do not want to overbake the cake, or else it won't be moist.  Allow to cool in the pans about 5 minutes before turning them out onto cooling racks.  Remove the parchment paper!

Frosting.  Combine frosting ingredients in a stand mixer and whip until fluffy.  Try to keep the kids out.... my goodness it's delicious!

Decorate.  In between the cooled cake layers, I added about half of the bag of Heathbar pieces (the tiny ones that come pre-chopped in a bag in the baking isle) on top of the frosting, then topped with the second layer.

For the topping, I bought a bag of (full-sized) Heathbars, and rough chopped four of them into pieces that were approximately the size of a quarter and piled them on top.  Around the edges, I spooned more of the small pieces from the bag. Drizzle melted chocolate over the top.  I actually used melted chocolate flavored Almond Bark, since it is so easy to work with.