Dark chocolate mousse layer cake (low fat)

Is it obvious that I'm obsessed with layer cake?
A friend of mine recently told me that it was torment seeing my cakes on Facebook as she's been on a diet. And it occurred to me I probably shouldn't indulge too much myself, considering I still haven't lost all my pregnancy weight. Yet. So when Queensland-based weightloss and wellness retreat Chi of Life, asked if I could come up with a low fat spin on a favourite dessert, I jumped at the chance and made this dark chocolate mousse layer cake.

By substituting milk with water and cream with yoghurt, plain flour with wholegrain, and reducing the amount of sugar, I was able to create a healthier version of my all-time favourite chocolate cake. The result was absolutely delicious!

*I used two smaller cake tins to create a tall cake for styling purposes but this works well as a two layer 20-cm cake that serves eight, as per my recipe below.
Dark chocolate mousse layer cake (makes one 20-cm round cake)


For the cake:
85g dark chocolate, chopped
1/2 cup cocoa powder
1 cup brown sugar
1/2 cup boiling water
2 eggs
1 cup wholemeal flour
1 teaspoon baking powder

For the mousse:

1 cup whole milk yoghurt
30g dark eating chocolate
1 tablespoon milk
1 tablespoon cocoa powder
2 tablespoon caster sugar
1 teaspoon vanilla extract

Garnishing (optional):

Fresh strawberries
Edible flowers
Icing sugar


1. Preheat oven to  180 degrees celsius, Grease a 20 cm-round cake tin of the same size.

2. Combine chocolate, cocoa powder, sugar and water in a large bowl and stir until smooth. Add eggs and whisk to combine. Fold in almond meal and flour. Pour into prepared cake tins.

3. Bake for about 35-40 minutes or until a skewer inserted in the middle of the cake comes out clean.

4. Allow to cool, then trim off top of cake to make level. Carefully slice cake into 2 even horizontal layers.

5. To make the dark chocolate mousse, first add chocolate and milk to double boiler to melt. Stir constantly until smooth. Allow to cool.

6. Whisk melted chocolate with the rest of the mousse ingredients until combined. Place in refrigerator until well chilled.

7. To assembly the cake, place bottom layer of cake on serving plate or cake stand.

8. Add 2-3 tablespoons of mousse on cake and spread with spatula. Repeat with cake layer and mousse.

6. Garnish with edible flowers (I used viola heartsease, rocket and bokchoy flowers) and fresh strawberries.
Nutritional information per serving (Servings: 12)

Energy: 376kJ
Protein: 8.4g
Fat: 8.82g
Carbohydrates: 66.02
Sodium: 44.87mg

All values averages calculated using National Nutrient Database for Standard Reference

19 Responses to Dark chocolate mousse layer cake (low fat)

Anouk said...

This looks so delicious and beautifully presented. I love chocolate mousse but I have never tried it in combination with a cake.


Rowena @ rolala loves said...

I love how you managed to make a healthier version of this delicious treat and the way you decorated it is just gorgeous Trishie!

Rowena @ rolala loves

Ananka said...

Oh this looks really amazing and I love your photos of it :-D

arushee bhoja said...

that looks DELICIOUS! thanks for the recipe :)

Rose said...

Gosh! It is torturous to read this post!! I love your photos.

I also not really lose those baby fat and my boy is turning 2 next week!!

AVY said...

It's a very sane obsession to have.

/ Avy

burntfeather said...

cute and healthy - definitely a win win!!

Enara Girl said...

It seems yummy. I want a piece of that cake! xoxo

Ice Pandora said...

What a beautiful looking dessert c:
Points for you because of the healthy adds!
Xx Ice Pandora

kidgranny said...

It looks SO good, Trishie! Love that you swapped for healthy ingredients and it still looks super decadent.

Pamela RG said...

Trishie, you make delicious and pretty cakes. I would like a chocolate and low fat cake anytime.

sonia de macedo said...

I've been drooling and lusting after this since noticing it on Instagram! Thank you for the recipe ;o)


Elle Sees said...

my goodness, not only does that look delicious, but it looks BEAUTIFUL too!

Jane said...

Drool! Looks delicious!

Midnight Cowgirl said...

Another yummy looking cake! I cannot resist chocolate :)

Sharlynn Ng said...

Oh I'm soooo envious of that gorgeous cake you've assembled and enjoyed Trishie!! I totally NEED to get small cake pans to make smaller cakes as I've realized bigger cakes aren't ideal. I would prefer a small cake for fasting baking, more layering and also so there's less to eat (especially if it doesn't turn out as good as I wanted)! Totally going to bookmark this recipe and others from you to try next time!

Brandi said...

Such a beautifully decorated cake. It looks so good!

Sharon D said...

Obsessed? I say, more! I absolutely love the presentation, Trishie. And those strawberries look to die for! I'm picking up a tip or two. May just try decorating my cakes this way one day.

Michelle {Jarrah Jungle} said...

This looks so amazing, love your cakes they always look so beautiful!