Looking for the best Lego birthday cake ideas? I have heaps of amazing Lego cakes below that you can DIY or take to your favorite cake baker to make for you. From simple buttercream cakes to elaborate fondant cakes, there is something here for everyone. There are also ideas for Lego cupcakes and a Lego donut tower.
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Cake by: cakeymillions
Lego party themes are one of my favorite types of parties to style. Lego cakes are so varied in style. From Lego blocks to Lego minifigures, Lego Friends, The Lego movie, Ninjago and more – there are so many fun ways to decorate a Lego cake.
Cake by: cherrybomb.cork
Lego Cake Ideas
Some of the amazing Lego cakes below feature Lego pieces as the main decorative feature.
I love the contrast of the red and white icing together on this brilliant Lego cake. It looks too good to cut.
Cake by: vanile_patisserie
The Lego minifigure and Lego pieces decorating this stunning cake are done so well. Scroll to the bottom of the page to find out where to get the Lego molds to make an awesome cake like this one.
Cake by: andreaortizfuentes
Here is another idea for a colorful Lego cake below.
Cake by: lynnehassanicelebrationcakes
I love this idea for a bright and chaotic Lego sheet cake below. These personalized name and age cake toppers are also available to purchase. Scroll to the Lego cake supplies section of this article for the details.
Cake by: top_it_caketoppers
I love this idea. Why not make an amazing cake with real Lego on top? They will enjoy the Lego long after the cake has been eaten. Just make sure they know the Lego parts are not edible.
Cake by: simplyblisscakery
Another easy idea is to use printable cake toppers made of paper or cardstock like this fun cake below.
Cake by: celestecreations_swati
And here is another amazing Lego City cake. You could use a real Lego creation as a large cake topper.
Cake by: sonjas_sweet_side
Lego Brick Cake
I love the simplicity of this Lego brick cake. I have made one of these in the past using buttercream and marshmallows on top to make the dots on the Lego brick.
Cake by: fizasdesserts
Lego Head Cake
I love an easy buttercream cake and this cake fits the bill. With the face features cut out from black fondant, anyone could easily make an amazing cake like this one below.
And this fondant Lego head cake is a super fun cake as well.
Lego Ninjago Cake
I love how the fondant looks like material in the next stunning Ninjago cakes.
Cake by: askato
Cake by: mariadewicakes
And another stunning Lego Ninjago birthday cake idea that is perfectly crafted.
Cake by: thehare_sbh
Lego Batman Cakes
If they love Lego Batman then they are going to love any of the next 3 AMAZING cakes.
Cake by: thekakelady
Cake by: vanilla_icedcakes
Cake by: jennys_cake_kitchen
Lego Friends Cake
Lego Friends cakes are also very popular with their pastel colors.
Lego Star Wars Cake
Lego Cupcakes
Lego cupcakes are another option for a fun cake idea. I adore the simplicity of these stunning Lego cupcakes and they look amazing.
Cake by: sugar_valley_
The mini chocolate bars and cute Lego head cake toppers look awesome on these cupcakes.
Cake by: cakeymillions
I love the primary Lego colors on these beautiful and bright fondant cake toppers
Cake by: teacher_cake
How sweet are these Lego friends cupcakes!
Lego cake pops are another fun alternative to a traditional birthday cake.
Cake by: delightfuldesires_yakima
And for another fun idea, why not create a Lego donut stack? This is perfect for those who don’t like cake.
Or this Lego candy donut tower below.
Lego Cake Supplies
Find all the Lego cake supplies below to make your own Lego birthday cake.
Minifigure and Lego Chocolate Molds
Mini Chocolate Bar Molds
Lego Cake Mold
Lego Block Theme Name and Age Cake Toppers – Find them here.
Image credit: TopItCaketoppers
Lego colored Sprinkles
These edible Lego colored sprinkles are the easiest way to decorate a Lego cake. Simply ice and sprinkle. Find them here.
Image credit: CoolMomSprinkles
More topper kits below:
Don’t miss our full guide to the best Lego Birthday party ever!
Looking for Lego party favors – I’ve got you covered with these unique ideas.
Some of the amazing professional cake decorators featured in this article are listed below. If any are in your area, feel free to contact them to make a fabulous cake for you.
Thank you for reading this article.
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love the idea of a lego brick cake, seems easy enough to pull off with the right mold! anyone tried making one b4 and has tips?
My best tip would be to grease the tin well so that the cake comes out in one piece. But icing can fix most things if anything goes wrong. Happy baking!
Does anyone know if there’s a way to use a 3D printer for making more complex Lego cake molds? Thinking it could open up possibilities beyond what’s commercially available.
That sounds like a cool project! But make sure the materials are food safe, not all 3D printer materials are good for that.
Absolutely adore the Lego Friends cake idea! It’s perfect for my niece’s upcoming birthday.
Thanks Jenny.
So excited to try the Lego Star Wars cake for my little one’s birthday!!! Any recommendations for edible glitter to make it sparkle?
Etsy have some great options for edible glitter.
so cute. im gonna do butter frosting though as the fondant is too hard im not good at cakes yet