Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (2024)

Last updated - ; Published - By Rhian Williams 38 Comments

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ThisGluten-Free Vegan Chocolate Mousse Cake is the best secretly healthy yet seriously indulgent dessert: a moist, fluffy chocolate sponge, topped with a silky, melt-in-your-mouth chocolate mousse and a velvety chocolate ganache. It's super chocolatey, rich and creamy and sweet but not sickly! It's super easy to make and refined sugar free too.

Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (1)

For the base, I used my go-to chocolate sponge recipe- it's easy to make, requires just one bowl and familiar ingredients, and is versatile too.

The mousse layer was inspired by my Chocolate Sweet Potato Buttercream- it's easy to make, uses inexpensive ingredients and you honestly can't taste the sweet potatoes at all! Their naturally creamy texture makes them the perfect base for a luxurious chocolate mousse that doesn't leave you feeling unwell afterwards.

The dark chocolate ganache layer is the perfect way to finish off the cake as it adds an extra level of indulgence.

How to make the cake

Scroll down to the bottom of the post for the full recipe.

Tip:Use a measuring jugto measure out the milk.

Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (2)

Tip: Line the bottom of the tin with greasedbaking paperto make it easier to remove the cake afterwards.

Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (3)
  • Bake in the oven for 15 minutes, until an inserted skewer comes out clean.
Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (4)
  • Leave to cool before applying the mousse.

How to make the mousse

Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (5)
  • Whizz until completely smooth.

Tip:You will have to mix it around a few times.

Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (6)
  • Spread the chocolate mousse over the sponge.
Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (7)

How to make the chocolate ganache

  • Melt the chocolate in a bowl.
Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (8)
  • Add the plant-based milk and mix well.
Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (9)
  • Pour it over the mousse layer of the cake.
Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (10)
  • Place in the fridge for at least a few hours until everything is set.
  • Once the chocolate ganache has set, decorate if desired.
Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (11)
  • Ensuring that everything has set properly, remove the cake from the springform tin and transfer onto a plate or cake stand before slicing.
Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (12)

How long does this keep for?

This Chocolate Mousse Cake keeps covered in thefridgefor up to afew days.

Substitutions you can make

  • You can use any type of oil: coconut oil, olive oil or vegetable oil.
  • You can use any type of plant-based milk: almond milk, rice milk, soy milk, cashew milk, oat milk etc.
  • You can use any type of liquid sweetener: maple syrup, agave syrup, brown rice syrup etc.
  • You can replace thevinegarwithlemon juice.
  • You can replace the ground almonds (almond meal) with ground walnuts.
  • For a nut-free version: replace the ground almonds (almond meal) with ground sunflower seeds or use 30g (¼ cup) coconut flour instead of 150g (1 ¼ cup) ground almonds and use a nut-free plant-based milk.
  • You can use plain flour,wholemeal (whole wheat) flouror spelt flourinstead of the gluten-free flour if you're not gluten-free.
  • Use a refined sugar free chocolate, if necessary.
  • If you don't want to use sweet potatoes, or want to use a different type of chocolate mousse recipe, you could alternatively use my Vegan Chocolate Mousse recipe or my Vegan Chocolate Pudding recipe.
Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (13)

More vegan chocolate cakes

  • Chocolate Torte
  • Chocolate Hazelnut Truffle Cake
  • Brooklyn Blackout Chocolate Cake
  • Peanut Butter Chocolate Cake
  • Chocolate Truffle Cake
  • Chocolate Orange Cake
  • Chocolate Cupcakes

If you try out this recipe or anything else from my blog,I’d really love to hear anyfeedback! Please give it a rating, leave a comment, or tag a photo @rhiansrecipes #rhiansrecipes onInstagram! Thank you.

Watch how to make it

Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (14)

Gluten-Free Vegan Chocolate Mousse Cake

ThisGluten-Free Vegan Chocolate Mousse Cake is the best secretly healthy yet seriously indulgent dessert: a moist, fluffy chocolate sponge, topped with a silky, melt-in-your-mouth chocolate mousse and a velvety chocolate ganache.

4.56 from 29 votes

Print Pin Rate

Course: Dessert

Cuisine: European

Keyword: vegan chocolate dessert, vegan chocolate mousse cake

Prep Time: 20 minutes minutes

Cook Time: 30 minutes minutes

Total Time: 50 minutes minutes

Servings: 8

Calories: 283kcal

Author: Rhian Williams

Ingredients

For the chocolate sponge:

  • 30 g ( cup) coconut oil (or sub olive or vegetable oil)
  • 125 ml (½ cup) unsweetened almond milk (or any other plant-based milk)
  • 1 teaspoon apple cider vinegar (ensure gluten-free if necessary)
  • 6 tablespoons maple syrup (or sub any other sweetener)
  • 1 teaspoon vanilla extract
  • Pinch salt
  • 75 g ( cup) ground almonds (almond meal) *
  • 75 g ( cup) gluten-free flour blend (or sub plain flour if not gluten-free)
  • 1 heaped teaspoon baking powder (ensure gluten-free if necessary)
  • ¼ teaspoon bicarbonate of soda (baking soda)
  • 25 g (¼ cup) cocoa powder

For the chocolate mousse:

  • 400 g (14 oz) sweet potatoes (2 medium-sized sweet potatoes)
  • 2 tablespoons cocoa powder
  • 1 teaspoon vanilla extract
  • Pinch salt
  • 3 tablespoons maple syrup (or sub any other sweetener)
  • 1 teaspoon coconut oil

For the chocolate ganache:

  • 60 g (2 oz) dark chocolate ** (ensure vegan/refined sugar free if necessary)
  • 7 tablespoons unsweetened almond milk (or any other plant-based milk)

Instructions

For the chocolate sponge:

  • Preheat oven to 180 degrees Celsius (350 degrees Fahrenheit).

  • Place the coconut oil in a large bowl and melt over a saucepan of boiling water or in the microwave (skip this step if using any other oil).

  • Once melted, add the milk to the same bowl along with the vinegar, maple syrup, vanilla, salt and ground almonds.

  • Sift in the flour, baking powder, bicarbonate of soda and cocoa powder.

  • Mix well, adding a tiny splash more milk if it’s looking too dry.

  • Place the mixture into a greased springform baking tin lined with baking paper (I used a 7inch/18cm springform baking tin).

  • Bake in oven for around 15 minutes until risen slightly and an inserted skewer comes out clean.

  • Once out of the oven, leave the sponge in the tin to cool completely before applying the mousse.

For the chocolate mousse:

  • Cook the sweet potatoes by boiling, steaming or roasting them until very soft and tender.

  • Discard any skins, and add to a food processor or blender (or hand-held blender) along with all other ingredients.

  • Whizz until completely smooth.

  • Taste and adjust ingredients as necessary – add more maple syrup for sweetness, more cocoa powder for chocolate flavour etc.

  • Leave to cool before using for the cake.

  • Once the sponge has cooled, keep it in the baking tin and spread the chocolate mousse over it.

For the chocolate ganache:

  • Melt the chocolate either over a bain-marie or in the microwave, add the almond milk and mix well.

  • Still keeping the cake in the baking tin, pour the chocolate ganache over the top of the mousse layer.

  • Place in the fridge for at least a few hours until everything is set.

  • Once the chocolate ganache has set, decorate if desired.

  • Ensuring that everything has set properly, remove the cake from the springform tin and transfer onto a plate or cake stand before slicing.

  • Tastes best when fresh, but keeps covered in the fridge for up to a few days.

Video

Notes

*You can alternatively usealmond flour.

**Use refined sugar free chocolate, if necessary.

If you don't want to use sweet potatoes, or want to use a different type of chocolate mousse recipe, you could alternatively use my Vegan Chocolate Mousse recipe or my Vegan Chocolate Pudding recipe.

Nutrition Facts

Gluten-Free Vegan Chocolate Mousse Cake

Amount Per Serving

Calories 283Calories from Fat 117

% Daily Value*

Fat 13g20%

Saturated Fat 6g30%

Trans Fat 1g

Cholesterol 1mg0%

Sodium 104mg4%

Potassium 354mg10%

Carbohydrates 39g13%

Fiber 6g24%

Sugar 18g20%

Protein 5g10%

Vitamin A 7096IU142%

Vitamin C 1mg1%

Calcium 116mg12%

Iron 2mg11%

* Percent Daily Values are based on a 2000 calorie diet.

Made the recipe?Tag @rhiansrecipes on instagram and use the hashtag #rhiansrecipes!

Disclosure: This posts contains affiliate links to Amazon. If you purchase any of these products, a small percentage will come to me with no extra cost to you! This income will go towards the running of this blog – thank you.

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Reader Interactions

Comments

    Leave a Reply

  1. Anonymous

    Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (19)
    love it !!

    Reply

    • Rhian Williams

      Thank you so much!

  2. Bethany

    Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (20)
    This vegan, gluten free cake was a hit with everyone in the family. Easy to make. The hardest part was waiting for it to chill!

    Reply

    • Rhian Williams

      Thank you so much, so happy to hear that!

  3. Hannah

    Hi, I’d like to make this but had a question. Is the 400g sweet potato before or after cooking? Thank you

    Reply

    • Rhian Williams

      Thank you! It's before cooking!

  4. Lori

    Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (21)
    This cake is amazing! The mouse is light and fluffy. No one will know it’s sweet potatoes.
    Will make again and again! Mahalo!

    Reply

    • Rhian Williams

      Thank you so much, so happy to hear that!!

« Older Comments

Gluten-Free Vegan Chocolate Mousse Cake - Rhian's Recipes (2024)

FAQs

Why is my chocolate mousse not fluffy? ›

Not fluffy enough, not chocolatey enough, too sweet, grainy, etc etc. Many “easy” chocolate mousse recipes tend to use too much cream so the end result is more like custard, rather than aerated like real chocolate mousse should be.

How to make chocolate mousse Gordon Ramsay? ›

directions. Break the dark chocolate into small pieces (reserving 25g for grating later) and place in a bowl that fits snugly over a pan of boiling water. Leave until the chocolate has completely melted and then remove from the heat and set aside. Add the crème fraiche to the melted chocolate and whisk until combined.

Does mousse cake have raw eggs? ›

A rich chocolate mousse is prepared with high quality chocolate and fresh eggs. Two thirds of the mousse is baked, and the rest is used as topping. Please note: this recipe contains raw eggs. We recommend that pregnant women, young children, the elderly and the infirm do not consume raw eggs.

Does chocolate mousse thicken? ›

You will need to add a thickening agent such as cornstarch or additional egg yolks, but be aware that it is very difficult to add just the right amount to thicken the mousse so it doesn't turn into a chocolate pudding. Don't overdo it when it comes to thickening.

What can I add to mousse to make it thicker? ›

For an even thicker mousse, livestrong.com suggests adding in ½ tablespoon of cornstarch and ½ tablespoon of cold milk until reaching your desired consistency. Remove from heat and cool slightly before transferring it to the refrigerator to chill for 2 hours.

Why is my vegan chocolate mousse grainy? ›

Check that the chocolate has cooled down sufficiently – it should not be warm to the touch or else chocolate is likely to seize and you will end up with grainy mousse.

What is the difference between mousse and mousse cake? ›

So a mousse cake has cake with mousse layered between the cake layers and a mousse tart has a pastry shell containing the mousse.

What are the three basic elements of a mousse? ›

Mousse is a light and airy dessert made with eggs, sugar, heavy cream, and flavoring. All mousses have four basic components: aerated egg yolks, whipped egg whites, whipped cream, and a flavoring base.

What is the thickening agent for mousse? ›

Mix 1/2 tablespoon of cornstarch with 1/2 tablespoon of cold milk for every 1 cup of finished souffle. Mix the cornstarch slurry into the main liquid ingredient. Heat the main ingredient over a double boiler until it thickens, or for 5 to 7 minutes.

What is a substitute for raw eggs in mousse? ›

Pasteurized liquid egg whites in cartons can be used in recipes that call for whipped uncooked whites. Use a pinch of cream of tartar, and beat well since pasteurized whites may not beat up as well as fresh egg whites.

What to use instead of raw eggs? ›

13 Effective Substitutes for Eggs
  1. Applesauce.
  2. Mashed banana.
  3. Flax or chia seeds.
  4. Commercial egg replacer.
  5. Tofu.
  6. Vinegar and baking soda.
  7. Yogurt or buttermilk.
  8. Arrowroot powder.
Feb 7, 2024

What is a vegan egg yolk substitute for mousse? ›

Silken tofu

You might be surprised to hear that silken tofu makes an excellent substitute for eggs in savoury or sweet dishes, such as vegan cheesecake or chocolate mousse. However you use it, you'll need to whip it until smooth, otherwise you'll be left with noticeable chunks of tofu in your mixture.

What can go wrong when making chocolate mousse? ›

Temperature is one of the most important factors to consider when making chocolate mousse. If your chocolate becomes grainy when you add the whipped egg whites or cream, it has cooled too much and hardened into small grains.

Why won't my chocolate mousse set? ›

A runny mousse that won't set is caused by the opposite of the reason for grainy mousse. If your mousse won't set, it is most likely because you have under-whipped the heavy cream. Perfectly whipped cream will stabilize the mousse as it sets in the refrigerator.

Why did my chocolate mousse seize? ›

Steam condensing on the lid may drip into the chocolate and make the pieces stick together and seize, or harden. Seizing can also occur if you splash water into the chocolate or if you melt it with a tiny amount of liquid.

Why is my chocolate mousse so dense? ›

Make sure that the chocolate mixture has cooled properly before adding it to the whipped cream as if it is too warm it will melt the cream slightly and may be a reason for the denser texture.

What are common mistakes when making mousse? ›

You'll have a better chance for success if you can learn to avoid these common mousse mistakes.
  • Getting the temperatures wrong. ...
  • Using a bowl that's not squeaky clean. ...
  • Overmixing your mousse batter. ...
  • Burning the chocolate. ...
  • Flubbing the folding. ...
  • Not straining the custard. ...
  • Skipping the chill.
Apr 22, 2024

How to fix mousse that didn't set? ›

Not a healthy option but adding corn starch can fix it. Mix a tablespoon of corn starch with water or milk and add it to liquidy mousse, heat it up it will thicken up.

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