Ann Reardon

Lego Batman Cake

lego batman cake decorating class online

This fun Lego Batman Cake is actually quite easy to make and is sure to light up any Lego, Batman or superhero party.  It’s 5am and I’ve snuck downstairs without waking my boys to write this before the Batman video goes up tonight. It’s been a crazy-busy week. Yesterday started with an early morning phone interview for a US magazine, then a Skype conversation with a YouTube network, then a long drive into the city for a meeting with a talent agency, followed by a meet-and-greet with a kitchen appliance brand. We rushed straight home to get the kids from school, clean the house and make dinner. I had every intention of writing out this recipe for you last night… really I did, but sleep won. What a varied but beautiful life, and it’s all because of you lovely subscribers who regularly read my website and watch my YouTube videos. This Lego Batman cake serves 24 guests. To help you make this fantastic cake, I have created a template that is available now in the website shop or just click on the add to cart link below.


To make the Lego Batman Cake you will need:

* The cake and fondant cutting template

* Cake: 2 and 1/4 quantities of the Rich Chocolate Cake Recipe baked into three trays (ie 3/4 quantity of the cake recipe per tray). The trays I used were 25cm (9.84 inches) x 38cm (14.96 inches) x 1.5cm (0.59 inches) tall. When baking in trays it takes 15-20 minutes per tray to bake.

* Frosting: 2 quantities of the frosting recipe of your choice. I used chocolate buttercream mixed with ganache.

* Fondant:
2kg (4.41 pounds) black fondant you will have quite a bit left over but this gives you plenty to roll out and cover the cake
50g (1.76 ounces) yellow fondant
30g (1.06 ounces) white fondant
a small amount of fondant – lego batman skin color (either color your own white fondant or select a fondant that matches your lego figure)

* Other
black gel colour
silver luster dust plus lemon juice or alcohol
clean paint brush
rolling pin
non-stick baking paper
tylose powder (optional you can make the hands and arms ahead of time if you prefer)
edible clear spray shine for cakes (I used dinky doodle shell and shine)
lollipop stick to support the arm
bendy chocolate bar x 2, I used boost bars
Cake Board

How to make the Lego Batman Cake

1. Print out the template and make or buy a cake board to fit the cake


2. Bake the cakes and make the frosting

3. Cut out the cake using the template and instructions on the video

4. Cover in frosting and rest in fridge for 10 minutes

5. Cover in black fondant and mold to shape

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6. Add fondant details (see video for detailed instructions)

lego batman cake ideas how to cook that
7. Paint on muscle and belt lines and around the mouth

batman lego cake tutorial
8. Spray with edible cake laquer

9. If the weather is hot, store in fridge until ready to serve, otherwise room temp is fine.

10. Take a photo of your cake and upload in the comments section below, I’d love to see it.

I can here little footsteps and singing upstairs I must go up and give big cuddles. See you next Friday


by Ann Reardon How To Cook That

My Cookbook

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All recipe quantities in the book are in grams, ounces and cups.

103 Comments View Comments

  1. Thank you so much for this tutorial, my 6 year old is obsessed with LEGO Batman
    And this was perfect!
    I blew the template up to 140% ad although I thought it was gonna be to big it was the perfect amount for his crazy super hero party
    Love your tutorials
    Thank you Ann

    • Well done Jodie! Your cake looks amazing. I hope your 6 year old loved it.

  2. Hello. I was just wondering what your thoughts are about shrinking the template to make a smaller size? I’m keen to make it but was hoping to make a bit smaller than this. Kind regards, Kelly

    • Hi Kelly, You can adjust the tempalte size if desired.

  3. Hi,
    I am wondering if you could please tell me
    a) the size board needed to place batman onto and
    b) using your chocolate cake recipe linked above, how many days prior i could make it before it goes off?
    I have made your Lightning McQueen cake previously, using mud cake and ganache so i could buy an extra night or two of decorating time, but am wanting to use your cake recipe and buttercream this time around but am concerned that either the cake or buttercream may go off.
    Thank you, love your work!

    • Hi Lauren,
      Cake is best made fresh and used within 3 days. I would bake and assemble the day prior to serving. To ensure your board is big enough, lay out your template pieces just as Ann does in the video. You will need one at least 60cm long, so many people find it easier just to cover a chopping board with silver foil or similar.

      • Awesome, thanks for the tips!!! I have just made the batarang and hand ahead of time, however am wondering if there is any reason i could not make the arms, yellow belt and bat symbol ahead of time also? Would it be hard for the yellow belt and symbol to mould to the cake if already firmed, or hard for the arms to set without a cake to adhere to?
        Thank you

        • Hi Lauren, anything you need to fit to shape the cake is either best made and added at assembly time or you need to find a way to dry it in shape to fit the cake. The risk with the latter is always that it may not exactly fit. So you could make all the pieces in advance as you describe but it may be better to wait. It is really up to you and if you feel confident in your skills. I would do any flat pieces in advance , but not the belt. The arms are important to get in proportion to the rest of the cake but can be done in advance.

  4. Here’s our cake that we made for our 5 yo celebrating his birthday last weekend. Kids loved it. Thank you for the guidance!

    • It looks fabulous Manca.

  5. Hi Ann,
    I guess pink fondant used for the mouth is missing in the list above?!
    Secondly, did you cover only the belt when spraying over the cake as in the tutorial or did you cover the whole upper body?

    • Hi Manca, Ann covered with baking paper, any section that she painted with black gel food colouring. The Lego Batam skin color, can be made using a small amount of white fondant or if you prefer you can purchase a similar pre-made skin tone fondant. Here is a link to a page with tips to make a good skin colour.

  6. Picture

  7. I love this cake here’s my attempt

    • Awesome, you really got the batman face just right!

  8. I did this for my sons 7th birthday party. Thanks for the tips!

    • Great work Jacob.

    • About how big is this cake? Betsy

  9. Thanks for making the impossible possible!

    • Wow, awesome job Kristine!

  10. My little one who was turning 4 wanted a batman lego cake. I came across this one and bought the template. Was completely worth it. He loved the cake!!

    • Great work Natalie, your cake looks fabulous!

  11. Hi Robyn, That sounds very odd as it shouldn’t change your browser. You would have received a back up email with an active link, so check your email (inc junk email folder). I will also pass your query onto our customer support team and they will be in touch just in case it hasn’t gone through properly.

  12. My son’s birthday – 6 years old. Thank you so much for great guidance and inspiration!

    • Great job Anne-Lene. Well done!

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