Vegan Peanut Butter Chocolate Mousse

Do you remember the time when aquafaba was everywhere? Suddenly, all those recipes for vegan chocolate mousses popped up. The not-so-secret ingredient: the liquid from a can of chickpeas.

This vegan peanut butter chocolate mousse is one of my earliest recipes. It’s one I’ve experimented with again and again to make sure I get it right. Spoiler alert: aquafaba can be somewhat tricky to work with.

So when aquafaba had its big moment, it was everywhere. It felt like everyone was experimenting with mousses, meringues, and all sorts of other desserts. And because I love chocolate, and a nice fluffy mousse, I hopped onto that trend.

Peanut butter and chocolate: A match made in heaven

Peanut butter and chocolate were the first combination I tried when I decided to just give the whole aquafaba mousse thing a go. It just felt like it would work, flavor-wise, and it does. The peanut butter adds a rich and bold note, while the chocolate makes everything creamy and smooth.

I tried a few variations along the way, like hazelnut butter or white chocolate, but they never quite worked in the same way. Either the flavor was too mild (hello, hazelnut butter!), or the texture didn’t hold up properly once everything was folded together.

In the end, I always came back to peanut butter and chocolate, so that’s the version I stuck with.

Getting the aquafaba right

This recipe is one that was kind of a pain in the making. I tried and tweaked it again and again. Because it wouldn’t always work. Sometimes, the chickpea liquid would remain just that–a liquid. Or the chocolate would seize up and everything would be one big clump of chocolate. Not quite what I was going for.

What I learned over time is that aquafaba needs to be whipped properly for this to work. Not just until it’s foamy, but until it’s actually firm. I usually use a hand mixer and go for at least 5 minutes on high speed.

A good test is the bowl test. If you can turn the bowl upside down and nothing moves, it’s done.

Another small detail that really helps is adding a bit of vinegar to the aquafaba before whipping. It stabilizes the foam and makes it more resilient later when you start folding in the chocolate mixture.

The right temperature for mixing

The chocolate part is simple: melted chocolate, peanut butter and a bit of coconut milk. Adding coconut milk helps to loosen the mixture slightly so it’s easier to combine later.

The most important part here is temperature. The mixture should only be lukewarm when you add it to the aquafaba. If it’s too warm, the structure breaks down and the mousse loses its airiness.

This is one of those steps that really makes or breaks the final result.

How to mix chocolate & aquafaba: Go gentle

Once both the melted chocolate mixture and the whipped aquafaba are ready, the chocolate mixture needs to be folded into the aquafaba in batches.

You have to go gentle here. The mousse will lose some volume during this step, and that’s completely normal. The goal is not to keep every bit of air, but to keep enough so the texture stays light.

I also noticed that clean, dry bowls make a world of a difference. Even small amounts of water–like tiny, minuscule drops–can affect the texture, especially when working with melted chocolate. This can mean that a not quite dried bowl leads to your chocolate seizing up.

Setting & serving

After everything is combined, the mousse needs a few hours in the fridge to set properly. I usually leave it for about 3 to 4 hours.

The texture becomes more stable during that time, and the flavours settle as well. I actually prefer it after it has had time to rest a bit. You can also enjoy it the next day, but I wouldn’t advise on waiting much longer to munch on this. At some point, the liquid will separate again–not very attractive.

It’s one of those desserts that doesn’t need much once it’s done. Just cold from the fridge is perfect. Try sprinkling on some additional choc chips or salted peanuts, or maybe some fresh or freeze-dried berries for a fruity twist.

Print