Chocolate Banana Custard – so creamy!

choc banana custard in bowl with four slices of banana on top, sitting on rustic wooden board on woven placemat, two bananas off to the side

This simple Thermomix Chocolate Banana Custard is made from scratch, without the colours and flavours that custard powder contains.

Bananas and maple syrup are used to sweeten, making it healthier than the sugar-ladened versions too.

We all know that custard is something that thermal cookers do well. This version gets some fruit into the kids and like all of my recipes, caters for a wide range of dietary needs. It’s free from gluten and nuts and you can use your choice of milk, making it dairy free as well if need be.

grey wooden backdrop, with woven light brown placemat on it, then a small rustic chopping board with a white bowl on it. In the bowl is brown chocolate banana custard, with four slices of banana on top and three bananas off to one side and a vintage spoon on the board.

Thermomix Chocolate Banana Custard: What we Need and How to Make

(Scroll down to the recipe card for the full recipe)

You’ll need only a few ingredients in order to whip up this sweet treat. They are:

  • Milk
  • Bananas
  • Maple syrup
  • Tapioca starch or cornflour
  • Cacao powder
  • Eggs
  • Pinch of salt

Like most Thermomix custard recipes, this chocolate banana custard has just one single Step.

Throw it all in and cook 7 minutes/90/speed 4/MC on.

FAQs for Chocolate Banana Custard

Hopefully I’ve thought of any questions you might have! If there is anything I haven’t covered, feel free to ask over on the Facebook group, or in the comments.

Do the leftovers keep well?

Yes. Store any leftovers in an airtight container in the fridge for up to three days.

Can I halve the recipe?

Yes, this recipe can be halved. Cook it for 6 minutes. If it’s not ready then cook for the remaining minute.

What about doubling?

Doubling will be fine if you need a lot of custard! You will need to cook a little longer – 9 minutes should be sufficient.

Can I make this custard dairy free?

For sure! You can use whatever milk you normally use – soy, nut milks. Try my Cashew Coconut Milk!

How about vegan?

You can make this vegan by using a plant-based milk and leaving out the eggs. Increase the starch by an extra 20-40g, 40g making a very thick custard.

Can I leave out the cacao?

Yes, you sure can. Leave out the cacao powder for a plain banana custard.

Is this a thick custard?

It is a fairly thick custard, yes. However, it’s not that almost sliceable thickness that Thermomix custard can sometimes be. Instead, the banana keeps it very creamy, even when cold straight from the fridge.

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brown chocolate banana custard in white bowl with four slices of banana on top. Cream banner below recipe with recipe title and thermobexta logo
choc banana custard in bowl with four slices of banana on top, sitting on rustic wooden board on woven placemat, two bananas off to the side
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4.75 from 4 votes

Chocolate Banana Custard

Quick and easy, this is a lovely treat for the kids after dinner.
Prep Time2 minutes
Cook Time7 minutes
Total Time9 minutes
Course: Dessert, Snack
Cuisine: Dairy Free, Gluten Free, Nut Free, Vegetarian
Keyword: banana custard, chocolate banana custard, chocolate custard, thermomix custard
Servings: 6
Calories: 146kcal


  • 500 g milk of your choice
  • 2 medium-sized bananas around 180g peeled, quartered
  • 30-50 g maple syrup
  • 40 g tapioca starch or cornflour
  • 10 g cacao powder
  • 2 eggs
  • pinch salt


  • Place all ingredients in mixer bowl. Cook 7 minutes/90/speed 4/MC on.


This is a great version for people of any ages – if making for a young baby, the maple syrup can be omitted so it is simply sweetened by the bananas.
Cacao powder can be omitted for a plain banana custard, if desired.


Serving: 1serve | Calories: 146kcal | Carbohydrates: 23g | Protein: 5g | Fat: 4g | Saturated Fat: 2g | Cholesterol: 63mg | Sodium: 58mg | Potassium: 308mg | Fiber: 2g | Sugar: 12g | Vitamin A: 239IU | Vitamin C: 3mg | Calcium: 112mg | Iron: 1mg

Please note, nutrition information is calculated via an online recipe nutrition calculator and is a guide only. It is provided as a courtesy and is not guaranteed 100% accurate. I am not a nutritionist or trained health professional.

Tried this recipe?Please rate it and leave feedback in the comments section below, or mention @Thermobexta or tag #Thermobexta on Instagram.
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2 years ago

Can u make it with out bananas?

Last edited 2 years ago by Bron
3 years ago

4 stars
How much is this supposed to make? I halved it, but it doesn’t look like much at all. Now I’m wondering if I actually put 250ml milk in or if I put 150 ?


[…] Thermobexta’s Choc Banana Custard […]

7 years ago

If I just wanted to use cornflour how much would I use?

7 years ago

We made it without any maple syrup and it was very yummy thank you

7 years ago

Yummo! This recipe was very well received! How long could you keep in the fridge? Can you freeze custard?!

7 years ago

I made this tonight and the kids LOVED it, luckily we have enough left over for the kids school lunch tomorrow!!!

7 years ago
Reply to  Yvette

I just made it and it is delicious. I had some frozen bananas so used them up. I had it with a little Greek yogurt and some crunchy granola.

bec bio shot website

Hi, I'm Bec

I specialise in great tasting vegetarian Thermomix recipes and cater for a wide range of dietary needs. I love sharing here and in my cookbooks my healthy, delicious recipes (of course the odd treat too!) Whether you’re looking to ignite your thermo mojo, or just after some new, really tasty family friendly recipes, there really is something here for everyone



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