Lego Cakes

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mindstorms cake

A real Mindstorms cake! Made from one Mindstorms NXT kit, this bot features a flickering “candle.” It sings Happy Birthday and when you “blow out” the candle, a sound sensor cues the flame to disappear. Hats off to the folks at Scroll way down for the video.

We love throwing Lego Robotics birthday parties for kids!

I offer online scheduling using BookFresh

We don’t provide cakes. That’s because we know you can either buy or make a wonderful one without us!  (Know of anyone who makes and sells Lego cakes? Do tell).

In the meantime, it’s actually not too too hard to make your own (unless you have a Mindstorms fan and want to build the candle above; directions here).

Just remember to set everyone’s expectations correctly. Let’s face it: If your creation looks vaguely Lego-ish and is slathered in sugar, who’s going to complain, especially after one of The Great Adventure Lab‘s amazing parties?


1. Quick and dirty.

OK, Betty Crocker doesn’t have the panache of Wolfgang Puck or even Julia Child, but keep mind: making a Lego cake is all about METHOD. We’re talking cake architecture here. So go ahead and make your own fabulous cake and frosting (or use boxed and canned, as Ms. B.C. recommends and we won’t tell anyone), and then look below for a video on how to make your cake look like Lego.

Guess what: it’s even easier than it looks because those knobs are just frosted marshmallows. If you hate marshmallows, you can always use the bottoms of mini-muffins … but c’mon – how many kids hate marshmallows?

LEGO betty crocker

“Building Blocks Cakes” from


The how-to video:

2. The mathematical approach.

For every Betty Crocker fan, there are probably two more folks who don’t appreciate her simplicity, and we found one of them at “” [yes, there’s no ‘e’ in kitchen]. This blog’s chef’s reaction to the whole box mix/ canned frosting approach of Betty Crocker was “no way.” Instead, she set out to make what she calls an “anatomically correct” LEGO® cake.

Her drawings are impressive!! We’re especially wowed by the repeated use of pi in a cake project. Did she use the disk method to calculate the area of that cylinder? Inquiring calculus survivors want to know …

LEGO cake plans

Anatomically correct LEGO® cake plans by Faith Durand, as posted on

You can read all about the result here … but here’s the executive summary: She made an excellent anatomically correct cake. Unfortunately, her chosen covering, fondant … was a bit difficult to work with (and is not known for taste). We will say no more. Let us admire the planning process instead.


3. Please don’t try this at home.

We’re all dedicated, right? But let’s face it – some of us are just more dedicated to the perfect cake than others. In the dedicated crowd: the mom at Jumpin’ Monkies, who somehow found .. oh, about eight hours … to individually carve, frost and combine 125 cake-LEGO® bricks for her son.

She found the experience both exhilarating (“Man I love that kid. I would do it again for him in a heartbeat”) and … um … overwhelming (“I want to remind myself to try to take on simpler cakes from now on!”). This is a lady who can make fondant work. And this is her creation:

LEGO pyramid

LEGO® pyramid cake by resident mom at the Jumpin’ Monkies blog.



4. This is NOT cheating, but it is rather expensive.

Buy or borrow mold. Fill. Bake. Flip. Frost. Eat. Yum. Done.


Yes, molds work! But do you want to pay $50 retail for a set like this? If not, try eBay.



5. This is ALMOST cheating.

… but not really because you have to think ahead and order. This offering is from Etsy seller Bumblecakes, who makes her fondant from scratch. A dozen toppers set you back $18 plus shipping (two pieces per topper). Shipped from Utah and can last up to a year when stored properly.


Custom cupcake toppers by Etsy seller Bumblecakes


7. Let them eat Cake Pops.

Amy Locurto, who also created some cool printable LEGO party invitations (you can find them on our invitations page), is also the inventor of these “LEGO cake pops.”  Some are made of cake … and she also made some from marshmallows (after shaping them, she freezes them, dips them in yellow candy melt, lets them cool, and then draws the faces).



8. Sugar-free robot.

For our Mindstorms parties, consider the sugar-free  ‘cake’ at the top of this page. Think how much money you’ll save on dental bills! The cake will set you back about $300, but on the upside, it doubles as an amazing birthday present!