A silky, decadent chocolate mousse cake — made with only 3 ingredients, no flour, no added sugar, and no oven. If you told someone what was in this, they wouldn’t believe you. And when they tasted it, they definitely wouldn’t.
Ripe bananas naturally thicken and sweeten the mixture. Cocoa powder brings deep, rich chocolate flavour. Milk holds it all together. Chill for 4 hours and you have the smoothest, most decadent dessert you’ve ever made — from the healthiest ingredients possible.
🍌 Why Everyone Is Obsessed
💡 Pro Tips for Perfect Results
- 🍌The riper the bananas the better — black-spotted bananas are the sweetest and give the most intense natural sweetness. No maple syrup needed!
- 🫙Strain for silkier texture — pour through a fine mesh strainer after blending for a completely smooth, professional-quality mousse.
- 🌡️Stir constantly while cooking — the mixture can catch on the bottom quickly. Medium heat and continuous stirring is the key to a smooth result.
- ⏰Overnight chilling is best — 4 hours is the minimum but overnight gives a firmer, more sliceable cake that holds its shape beautifully on the plate.
💛 Loved this recipe? We have 99 more just like it — all sugar-free and flour-free. Check out our cookbook Healthy Desserts Without Guilt for the full collection.
❓ Frequently Asked Questions
Can I taste the banana?
Slightly — very ripe bananas have a more subtle flavour that blends beautifully with cocoa. The chocolate is the dominant taste you’ll notice.
What milk works best?
Full-fat dairy milk gives the creamiest result. Oat milk adds a subtle sweetness. Coconut milk creates the richest, most indulgent texture — all three work beautifully.
My cake didn’t set firm — what went wrong?
It needs to cook longer on the hob — the mixture must thicken significantly before chilling. Cook for 8–10 minutes until it coats the back of a spoon.
How long does it keep?
Up to 3 days in the fridge covered with cling film. The flavour actually deepens and improves on day 2!
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