Ann Reardon

LEGO Cake – LEGO City Police Cake

lego cake tutorial ann reardon

My four year old is obsessed with LEGO. He loves to build his own creations and engage in imaginative play. And having two older brothers means there is a vast supply of Lego bricks to play with as well as experienced builders to help fuel his imagination. As his birthday approached this year, he was very specific about what he’d like – not just a Lego cake but a Lego City police station cake with real Lego figures out the front. And a police car. I did wonder if the ‘real’ figures and car were a ploy to get more Lego. In any case, it worked and the cake was a hit with his little friends too.

As this post goes live, I will be in L.A. at VidCon.  If you want to come by and say hi, I’m going to be doing some meet-and-greets at VidCon over the next couple of days.

To make this LEGO city police cake you will need:

Fondant
500g (17.64 ounces) white fondant
350g (12.35 ounces) black fondant
350g (12.35 ounces) blue fondant
500g (17.64 ounces) light grey fondant
50g (1.76 ounces) yellow fondant
50g (1.76 ounces) dark green fondant
blue and gold luster dust and a dry soft paint brush
Cake and fondant cutting template

 

Lego Base mat, lego blocks
Re-useable food grade molding gel
1x batch of vanilla buttercream
1x batch of ganache made with 130millilitres (4.4 fluid ounces) cream and 350g (12.35 ounces) milk chocolate
1½ quantities of my chocolate cake recipe baked in two trays (my trays are 38cm (14.96 inches) x 25cm (9.84 inches) ) Bake at 180C (356 degrees Fahrenheit) for 25 minutes.

lego city cake reardon

Cake board (mine is 12″ square).  If you want to make the garage wider you can – but you’ll need a wider cake board.
tylose (optional)
Make the ganache and leave overnight at room temperature to firm up. Bake, cool and level the chocolate cakes.
Make one batch of buttercream, add the ganache and whip together.

lego city cake howtocookthat

Use the reusable molding gel (you can get it online here) to make a lego texture mat (see video)

Place your top building templates on one of the tray cakes and cut around the shape of the first building.
Place it on a spare cake board or a plate and add a thin layer of frosting. Then continue to cut more layers and stack them up until it reaches the height of the side template for each building.
Then cover the whole thing in frosting and place in the fridge.

Base board: Place some light grey fondant over the cake board and roll it out. Add the texture mat over the top to make an imprint. Trim around the edges of the board.

Helipad: Take some more light grey fondant and use the texture mat to make an impression. Using a pizza cutter cut out a 7 x 8 rectangle. Then cut out a section from the top and base to make the H for the helipad.
Roll out some black and put the texture mat over the top. Cut out the shapes for the top of the building making them a little larger to allow for frosting and fondant on the sides (at least one dot wider and taller).

Grass: Make some green 2 by 10’s for grass.

Lights: To make the lights roll out some yellow and grey fondant. Rub a little water on the yellow and add the grey on top.
Slice it into little pieces the size of a two by one.

Police Office building windows: Roll out some white and cut it out using the template for the front, side and the back. Mark off the centre line with a slight indent and add a vertical line too.
Using a dry brush add some gold luster dust in each window corner and then brush blue over the top.
Add some strips of white across the base of each window, trim to size.
Add a strip of blue and place it across the top of each window and another up between each window and along the edges.
Roll out some thin strips of white and add them to the top of the front fondant police station part.
Add a strip and a half a strip to the other smaller front bit and leave the last one plain.

Prison: Cut out some black fondant and brush with a little silver luster dust.

Add snakes of light grey and place across, using your template as a guide for where to put the bars. Place strips of grey down and thick strips of grey across. Cut a strip of white and add it across the top. Add another one along the bottom of the jail cell and then add a thinner strip down each side on two of the jail sides.

police jail cake lego how to cook that

For the garage door. Cut a square of white then make indents across and down. Brush it over with blue luster dust and add a strip of white across the top.

Front thick blue bricks Roll out some blue using lego on the sides to guide how thick it needs to be.
Then cut some strips the width of a two block.

Using edible white food colouring write police down the front of the blue support.

Police Sign: Cut a square of white and put two blue strips across the top.

Assembly: See video for step by step instructions.

Photo Tip: Be sure to take a photo of the finished cake with your child before the party starts.  It is very hard to get a good photo when lots of kids are excitedly crowding around.

lego city cake howtocookthat

by Ann Reardon How To Cook That

2015

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BIG ANNOUNCEMENT

I have been busy over the last year planning, writing and overseeing the photography and layout for my first ever cookbook! There are heaps of my favourite dessert recipes in there with a chapter on pastries, ice-cream, yummy cakes, artistic desserts and of course chocolate desserts. Each chapter has its own intro explaining the food science that you'll need to know for success every time. Booksellers where you can purchase your very own copy: http://bit.ly/ARcookbook


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

55 Comments View Comments

  1. Rating: 5

    Hello, I am a big fan of the 60047 LEGO Police Station. It is my favorite set but I need printable templates. I am from Australia and I have a printer. Could I get images/PDFs of the templates. Thank you

    — Simpleatom 🙂

  2. Rating: 5

    Hi,
    I’ve made several of your cakes before and we’ve loved every one of them. For this one my son does not like chocolate. What cake would you recommend that I bake instead of the Chocolate cake recommended? Also, for the butter cream ganache covering, what would you recommend? I know that the ganache makes it a smoother covering before the fontant goes on, but is there something I could substitute? Would white chocolate ganache work the same way?

    • Hi Kate, you can use buttercream in any flavour that you like from this recipe https://www.howtocookthat.net/public_html/buttercream-cupcake-frosting-recipes/ you can skip the ganache if not wanting chocolate – just make more buttercream. As for the cake you need something structurally firm enough – try this one (you can leave out the blueberries and add lemon rind or orange rind for flavour) https://www.howtocookthat.net/public_html/pink-barbie-car-cake/

      • Fabulous thank you so much, this is SUPER helpful!. So far we’ve made your thomas cake, lightening mcqueen cake, play doh cake, dump truck cake, TNT mine craft cake, and they’ve all been fabulous! We’re huge fans! thanks again for a quick reply!

  3. This cake looks amazing! However I’ve just tried to buy the reusable molding gel and it’s very expensive. What quantity do I need? Would it be possible to put the cake on an actual Lego mat and buy a smaller quantity of the molding gel just to do the fondant accessories for the roofs etc

    Many thanks!

    • Hi Antonia. Re-useable foodgrade moulding (casting) gel can be expensive but it is totally reuseable!. It costs about $9 here for 200mL You could use the lego mat for the base and just do the details. I would get about 600mL.

  4. Hi I just wondered where I can please get the templates for the LEGO police station cake or the dimensions and size?

    • Hi Julie, They are purchasable for a small amount using the buy it now button in the recipe above.

  5. Here it is! I have worked on this cake over 3 days 🙂
    I used a good quality fondan that was very yummy, easy to work with and settled dry quite quick.
    After the Minecraft cake last year this was a much easier project! Thanks again Ann for all the fantastic ideas and amazing tutorials 🙂

    • Thanks for the feedback Matylda

  6. Hi,
    I am making this for my sons 5th birthday it looks amazing%
    I can’t find the template for the cake on the website, can you help please.

    • Hi Nicky, there’s a blue ‘buy it now’ button on this blog post. After you download it, ensure that your printer is set to print at 100%. It will then print over several pages that you can tape together in the correct size for the cake 🙂 Have fun

  7. Hi Ann,
    I purchased this for my son’s 6th birthday this weekend. I’ve printed off the template but the size looks very small. I printed on A4 paper. What measurements should I be working with?
    Thanks,
    Orna (very confused)

    • Hi Orna, As long as you printed it without scaling the size will be correct. Join the pages if and where directed. Compare the size of your template cut outs to the one’s on the video. Ann clearly holds these up, so you can reference the size easily. They always seem a bit small, but once the cakes are stacked, frosted and covered with fondant it is the size you are expecting. The base board is similar in size to a standard lego base mat that Ann makes the mold from.

  8. O.M.G! this looks amazing, loads of cake to eat to it, even the lego board is made of icing!

  9. Hi I made this for my son… not perfect but close.
    Thanks for the nice idea!!

  10. Hi Ann, where can I print the template? Don’t know if Im lookin in the wrong place. But I dont see it?

    My son is turing 6 and want this cake. Never done this before but we will try!

    Thanks for sharing!

    Telana

    • hi Telana, just click on the ‘buy it now’ button & then you will be emailed the link to print at home. Have fun!

  11. Thank you so much for a great cake idea Ann! My son is a superhero/Lego police station mad at the moment and it was a perfect design! I had only one day to make a cake so had to skip the prison! ???

    • Hi Elena, the cake looks amazing.

  12. Thanks once again for amazing recipes you share.

    • Thanks Mimi.

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