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Boca Negra (Flourless Chocolate Cake)



16 portion(s)

  • 5 organic eggs
  • 210 g caster sugar
  • 340 g dark chocolate (70%), chopped
  • 230 g unsalted butter cubed
  • 1600 g water
  • creme fraiche to serve
  • 6
    1h 10min
    Preparation 10min
  • 7
  • 8
    • Appliance TM 31 image
      Recipe is created for
      TM 31

Recipe's preparation

  1. Two options below for baking.

    VAROMA - Line a 20cm springform, firstly with aluminium foil over base circle then place a 20cm baking paper cut out on top attach ring of springform and close.  Once closed fold up overhanging alfoil to make seal it.

    OVEN - Preheat oven to 120°C. Grease and line a 25cm cake pan (not springform).

    Insert Butterfly. Place eggs, 70g of sugar and beat 6 min/speed 4, or until volume triples. Set aside and remove Butterfly.

    Add Chocolate and butter melt 3 min/50°C/speed 3 (or until melted).

    Add 140g sugar and 100ml of the water mix 2 min/50°C/speed 2.

    Remove MC and gradually with blades rotating around speed 3-4 add egg mixture through hole and mix until just combined.

    Pour into the lined 20 springform cake pan and place in Varoma recepticle. Add 1.5 litres to mixing bowl, set Varoma in place and cook for 60 min/Varoma temperature/speed 1-2. Once cooked leave to cool whilst still sitting in the Varoma over the mixing bowl.

    If using the oven to bake put a folded tea towel in a large roasting pan. Place cake on top and add enough hot water to come to three-quarters up the side of the cake pan.  Bake for 50 minutes or until set.  Cool completely in the water before serving with cream.


Accessories you need

  • Butterfly
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This is a very rich cake with a mousse like consistency.

This recipe was provided to you by a Thermomix ® customer and has not been tested by Vorwerk Thermomix ® or Thermomix ® in Australia and New Zealand.
Vorwerk Thermomix ® and Thermomix ® in Australia and New Zealand assume no liability, particularly in terms of ingredient quantities used and success of the recipes.
Please observe the safety instructions in the Thermomix ® instruction manual at all times.

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  • Made this for my husband's

    Submitted by Pielczara on 24. November 2014 - 14:05.

    Made this for my husband's birthday. It was very nice out of the fridge served with a dollop of whipped cream and some berries. Thank you

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  • I made this the way redsonia9

    Submitted by shazzak on 27. July 2014 - 10:28.

    I made this the way redsonia9 did and it was delicious, baked in oven not varoma, and everyone wants the recipe now.  Thanks everyone for the contributions.

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  • I make this cake at least

    Submitted by redsonia9@hotmail.com on 23. March 2014 - 16:35.

    I make this cake at least twice a week for a local cafe. I bake it in a 24cm springform cake tin - line as per instructions above. I bake it for 50 min at 120 c then leave it in the oven with the door closed to cool, preferably overnight if possible.

    Then place it in the freezer for 30- 45 minutes. This step is crucial to turning out the cake. Then remove springform side and paper from sides of cake.

    Flip upside down and peel off baking paper from underside, then turn the right way up again.

    Sift icing sugar generously over the top and serve with TM Berry coulis and whipped cream or icecream.

    This cake will last for at least a week if kept refrigerated.


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  • I was so excited to see this

    Submitted by ktnand on 7. December 2011 - 08:34.

    I was so excited to see this recipe pop up on facebook, and with my motherinlaw coming for dinner, who eats gluten free, I set straight to the kitchen to start baking. . . . .a very long and "complicated" way to make chocolate sauce (not even fudge).  Good luck for everyone else making this, but for me, it was one of my very few disasters.  Thanks for the try though.

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  • I read in the Facebook Page

    Submitted by michellea_75 on 6. December 2011 - 22:40.

    I read in the Facebook Page that this can keep up to a week. Would this be best kept in the fridge? If so, will it be just as moist?


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  • Can this be done in a

    Submitted by klg16 on 6. December 2011 - 14:21.

    Can this be done in a silicone cake mould, not a springform?


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  • (No subject)

    Submitted by ChefetAmanda on 5. December 2011 - 09:58.

    Cooking 7

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