Free Recipe · Thermomix Dessert
A crunchy chocolate biscuit base, a rich chocolate mousse middle and a shiny chocolate-glazed top, and no oven required.
This no bake chocolate mousse layer cake is made in the Thermomix in about 30 minutes of hands on time plus at least 4 hours of chilling, and the recipe serves 10.
I recently made this cake for our lovely staff member Sally's birthday, and what a hit it was. Everyone was raving about how fancy and decadent it was, but honestly, it is incredibly easy to do. And there is no oven required, making it absolutely fool proof (if you have got a thermo and follow my recipe exactly!). A crunchy chocolate biscuit base, a rich chocolate mousse middle and a shiny chocolate-glazed top, pretty special, right? To make sure it sets properly, I would get started the day before you are planning on serving, and that is one of the other brilliant things about this cake, you can make it up to three days in advance and it will happily sit in the fridge.
For the complete 'layer cake' effect, we do my Thermomix Chocolate Mirror Glaze on top (free recipe!), but honestly the mousse cake holds its own without it so if you are low on time or care factors, skip the last step.
I have also used this exact cake mixture to make individual chocolate mousse logs; they are so impressive! I used our naturally non-stick Silicone Bar Moulds without the sticks inserted to set the mousse cake centres, then coated them in the chocolate mirror glaze. I set the mousse filling in the freezer (as opposed to the fridge) making them easy to remove. Once set, I popped them out of the moulds, placed on the wire rack and chocolate glazed them. I then put them in the fridge overnight to allow the centre mousse cake to thaw for perfect eating, while the mirror glaze just stays perfect and shiny. A bit of planning required, but actually not that much work all up. Give it a go!
Meet the product
For a clean release, every time
Reusable Round Cake Tin Liner
Naturally non-stick, so this no-bake mousse cake lifts out of the springform pan cleanly.
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Let's Make
Chocolate Mousse Layer Cake (for Thermomix)
Serves 10 · Thermomix or thermo cooker · about 4.5 hours including chilling
Ingredients
*Any simple chocolate biscuit can be used (nothing cream-filled like a Tim Tam!), homemade or purchased. I usually use 'Chocolate Ripple' biscuits from the supermarket.
The Tools
Line the base of the springform pan for a clean, non-stick release.
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Method
Place biscuits and butter in TM bowl, mill 10 seconds, speed 7. Use hands to press firmly into the bottom of a 23cm lined springform pan (I only line the base of the tin and not the sides; read the note below!). Place in refrigerator.
Place 300g milk and gelatine in a cup or bowl and stir to combine. Set aside.
Add remaining 500g milk, sugar, cocoa and chocolate, cook 5 minutes, 70°C, speed 2.
Add gelatine mixture, mix 30 seconds, 70°C, speed 3.
Add cream, mix 10 seconds, speed 3. Pour chocolate mixture over biscuit base. Refrigerate for a minimum of 4 hours, or until set. Serve straight from the fridge.
Note: If you are having trouble removing the cake from the springform pan, you need to apply a little heat around the outside. This will melt the cake just slightly, meaning it will no longer stick. I find a hair dryer is a great tool. Warning though, just do a little at a time; if you use too much heat the cake will begin to visibly melt ruining your edges! Although it will still taste great of course.
You can line the springform pan with baking paper, however the edges will look smoother if you do not line it. I find the heat trick works wonderfully to release the cake, but if you are not confident line with baking paper first, just like you would when baking a regular cake.
To finish
Either remove from the springform pan and decorate and serve as is, or for the complete layer cake top with a chocolate mirror glaze. The mirror glaze does look amazing, but it is more work, so you might be happy to stop here!
Frequently Asked Questions
Can I make this cake in advance?
Yes. You can make it up to three days in advance and it will happily sit in the fridge. It needs a minimum of 4 hours to set, so start at least the day before you plan to serve it.
Do I need an oven for this cake?
No. This is a no bake cake made entirely in the Thermomix or thermo cooker, then set in the fridge.
What biscuits should I use for the base?
Any simple chocolate biscuit works, homemade or purchased, but nothing cream filled like a Tim Tam. I usually use 'Chocolate Ripple' biscuits from the supermarket.
How do I get the cake out of the springform pan?
Apply a little heat around the outside of the pan and the cake will release; a hair dryer is a great tool. Just do a little at a time so the edges do not melt. If you are not confident, line the pan with baking paper first.
Do I have to add the chocolate mirror glaze?
No, the glaze is optional and the mousse cake holds its own without it. For the complete layer cake look, follow our free Thermomix Chocolate Mirror Glaze recipe.
Want to get more from your Thermomix?
A clean release makes all the difference with a no-bake cake like this. Line your tins with the naturally non-stick Reusable Round Cake Tin Liner, and set the same mousse mixture into individual logs with the Silicone Bar Moulds.
