The Perfect Chocolate Mousse Cake with Passion fruit & Crumble Bottom

The Perfect Chocolate Mousse Cake with Passion fruit & Crumble Bottom

It is decadent and rich yet light, but how can that be? The secret is a base of silken tofu, whipped aquafaba, and good quality dark chocolate. Three simple ingredients which together give this cake the perfect amount of gosh darn delicious chocolatiness, creaminess, but also light- and fluffiness. That mousse together with a crumble bottom with oats and brown sugar for those caramel notes, and passion fruit for some freshness and delicious fruity notes. I also must mention that it’s great to make in advance since if you wrap your cake pan with the cake in plastic wrap it should old for at least a few days.

As a fun experiment I used something I bought a long time ago, a kind of vegan alternative to gelatin called “Vegegel”. I used it to make a light passion fruit jelly to top the cake with, which worked out great. it wasn’t too firm nor too liquidly so it didn’t set. I honestly was a little worried it was going to be like my childhood’s weird gelatin set mousse cakes with a way to firm fruit jelly on top, but it totally wasn’t anything like that. Simply delicious! However, if you don’t have time or want to make an extra component like a jelly, you can simply top the mousse cake with the flesh from a few fresh passion fruits. Work just as well!

I made this cake for Easter, and had it with my family during our outside Easter celebration dinner. All I could hear once everyone dug into their slices was: “mmmmMMmMMm”, and it all was finished by the six of us during that sitting, which says a lot.

Enjoy!

Have you seen a more gorgeous looking fluffy yet rich mousse? I certainly haven’t!

I used my stick blender to make the mousse base of tofu and melted chocolate. When I’ve made similar mousse recipes I’ve used a food processor, but a stick blender works just as well, and usually produces less dishes. Great, huh!

You can both use fresh passion fruit or thawed from frozen in this recipe. How convenient! In this recipe, I made a light passion fruit jelly, but you can just as well top the cake with fresh passion fruit. I used a vegan alternative to gelatin called “Vegegel” to set my jelly, which was a fun and successful experiment.

Pretty darn simple ingredients, right?

I call this the evolution of a chocolate mousse cake with a crumble bottom and passion fruit. Long name, I know, but I love showing step by step pictures.

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Fluffy & Creamy Vegan Chocolate Mousse Cake with passion fruit & a crumble bottom

With a base of silken tofu, whipped aquafaba, and dark good-quality chocolate this cake is creamy, delicious, decadent while not being too heavy. With the addition of a crumble bottom with oats and passion fruit, this cake is a dream come true. Since it can easily be made gluten-free and refined sugar free, and already is vegan (and delicious af) it is something for everyone!

  • Author: Hanna
  • Yield: 6-8 servings 1x

Ingredients

Scale

Bottom

  • 75g / 2,6 oz margarine/butter of choice
  • 4 tbsp sugar of choice, I used brown sugar
  • 60g / 2,1 oz plain flour, can probably be subbed for oat flour or such
  • 60g / 2,1 oz rolled oats
  • A pinch of salt

Mousse

  • 350g / 12,4 oz silken tofu, room temperature
  • 200g / 7 oz dark chocolate, I used 70%
  • Optional 2 tbsp or more sweetener of choice, I used maple syrup
  • 150ml/ 5,3 oz (about a carton’s worth) of aquafaba, the liquid from a can of chickpeas*
  • A pinch of salt
  • A splash of vanilla extract

Passion fruit layer (can be subbed for a few fresh passion fruits)

  • 150g passion fruit (I used thawed from frozen)
  • Optional 1tbsp or more sweetener of choice
  • 1 tbsp water
  • 1/2 tspvegegel“, vegan alternative to gelatin

Instructions

Bottom

  1. Preheat the oven to 200C/400F. Prepare a cake pan by greasing it and lining it with parchment paper. My pan had a 18cm diameter.
  2. In a bowl, using your hands crumble together the ingredients for the bottom till it becomes a somewhat “shapeable” crumble.
  3. Transfer the mixture to the pan. Press out evenly and prick with a fork. Bake for 18-20 minutes or until firm and golden. Let cool while making the mousse.

Mousse

  1. Using a food processor or stick blender, mix the tofu completely smooth. While the food processor or stick blender is still running, pour in the melted chocolate and mix until combined. Transfer to a bowl.
  2. In a separate bowl, whip the aquafaba as hard and fluffy as possible. It may take a couple of minutes. Then transfer around half the whipped aquafaba to the chocolate mixture and carefully fold it together. Add the rest of the aquafaba and repeat the process.
  3. Transfer the mousse to the cooled crumble bottom and spread evenly. Let cool in the fridge for an hour. If you’re just using fresh passion fruit, simply top the cake with it and serve, and skip the next steps.

Passion fruit topping (can be skipped if just using fresh passion fruit)

  1. Put all the ingredients in a sauce and bring to a simmer on medium high heat. Let cook for 2 minutes until starts to thicken. If you’re not sure if the mixture will set, spread a little on a plate and put in the freezer for a minute or two till cooled and check the texture.
  2. Transfer the mixture and pour over the mousse cake. Let set in the fridge for an hour before serving. Serve and enjoy!

Notes

*Choose a brand of chickpeas without added salt for flavour reasons

Keywords: Vegan, chocolate mousse, healthy, gluten free, chocolate mousse cake, mousse cake, cake, crumble, passionfruit, with passionfruit

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