Wednesday, January 19, 2011

Chocolate Mud Cake (aka. Marni's Miracle Chocolate Cake) (aka.Mandy's BDay Cake!)

Well - what can I say - this cake rocked! It was easy to make and super forgiving! It is a Chocolate Mud Cake that a friend from school passed on to me which I then made for a friend's birthday...will be making it again for sure. Originally posted by an Australian chef/cake decorator (I'll repost the recipe with link), it's a 9" chocolate layer cake with 2 layers of chocolate truffle filling and chocolate ganache poured over, with a little more truffle filling piped on top. It is super dense and moist, despite the fact that I left it in the oven a little too long (beeper beeped, I turned off the oven, did not take the cake out and then got distracted - playing guitar!)...anyway, it was probably left in the warm oven for about 15 minutes, but it didn't kill the cake, so that was pretty miraculous and awesome.

So - if you want to make it, here's the original recipe (with my conversions/comments in brackets). Make sure you have LOTS of better-quality chocolate on hand and a little heavy cream, the rest should come out of your baking pantry (or at least my baking pantry as Mandy likes to say!)...


HERE'S WHAT I FOUND WITH THIS RECIPE: I found that this actually made tons of batter, too much for my 9" cake pan (only 3 " deep)... so I poured off the excess batter into a 6" round pan (with with 3" sides)...baked and in the freezer for another day! Also - I found that the bake time was a little off... I had to bake it longer by approximately 20 minutes (not counting the extra 15 minutes in the "off" oven)...would have been even fudgier if I had removed it when I meant to! The golden rule is to bake this cake until a toothpick inserted in the centre comes out with just has a few moist crumbs clinging to it, not raw batter!

NEW Update (2013)...found that it actually worked best to divide the batter between 2 - 9" pans.  I wonder if this was the original plan, and it got missed in translation somehow?  Anyway, baking time was close to posted time (45-55 minutes) doing it this way!


Chocolate Mud Cake

  • 350 grams dark chocolate pieces
  • 225 grams butter (approx. 1cup, softened)
  • 600 ml water
  • 3 eggs
  • 400 grams super fine sugar (approx. 3 cups regular granulated sugar blitzed in a food processor until fine)
  • 400 grams self raising flour (approx. 3 cups all purpose flour, 3 3/4 tsp baking powder & 1/2 tsp salt)
  1. Grease and line a 23cm/9" round cake tin. Preheat oven to 170C/325F.
  2. In a saucepan over low heat, heat chocolate, butter and water. Stir frequently until melted and smooth. Remove from the heat and cool slightly.
  3. In a large bowl, lightly beat eggs. Gradually beat cooled chocolate mixture into eggs.
  4. Whisk sugar and flour into chocolate mixture, continue beating until smooth and well blended.
  5. Pour mixture into cake tin. Bake for 45 minutes or until skewer inserted into centre of cake comes out clean.
  6. Turn cake onto wire rack to cool.
*Please note: This mixture is quite runny, use a solid cake tin not a springform tin.
*Tip: Line tin with baking paper, this will make the cake easier to remove from the tin, no sticking to the sides.

Truffle Mixture

  • 120 grams dark chocolate pieces
  • 100 grams butter
  • 300 grams sifted icing sugar
  • 4 tbsp double or whipping cream
  1. In a bowl over a pan of simmering water melt chocolate, stirring frequently.
  2. Cool slightly, then stir icing sugar, butter and cream until well blended.

Chocolate Glaze

  • 225 grams dark chocolate pieces
  • 165 ml double or whipping cream
  1. In a saucepan over low heat, heat chocolate and cream, stirring frequently until melted and smooth. Keep warm.

Assembling The Cake

  1. Cut cooled mud cake into layers.
  2. Spread truffle mixture between layers with a palette knife. Reserve some mixture to finish round the edges of the cake.
  3. Position cake on wire cake rack and pour warm glaze over the top.With a palette knife to spread glaze to cover top and side evenly.
  4. Put remaining truffle mixture into a piping bag with a star nozzle. Pipe a decorative border around the edge of the cake.


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