LEGO Cake – LEGO City Police Cake
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.
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.
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.
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.
by Ann Reardon How To Cook That
2015
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I can’t wait to try this cake. I purchased the template and when I printed it out it looks small. I am sure that I am doing something wrong. Help
Hi donjohnsav. Lots of people think their templates seem small when printed but they make up correctly.. To check if yours are printed correctly. Just make sure you are printing them at full size without scaling. They are designed to be printed on A4 paper.
I love this cake and am going to attempt it. How much moulding gel did you use for the 12×12 imprint mat? The gel is quite pricey and I do not want to buy too much. You are amazing
Hi Donna, You can see from the video that Ann just used one small container to make the ,mold. The small container is around the 20 oz however it is totally reuseable and great to have on hand. I would rather have more than I need than not quite enough. If you will use it for other projects I would get the 40oz container which will give you more than enough.
I bought the template and have spent many hours making the fondant details for the cake and have realised that this will be much smaller than the one you seem to have made on youtube, and there is no way it will be big enough for my son’s birthday party. I printed the recipe on A4 paper and when you lie the template on the 12inch cake board it only covers about two thirds across the board (the one you made clearly went across the whole board). The height of the cake, according to the template, will also be much smaller than yours. So I am going to try and copy the recipe onto A3 paper to make it larger but I am very annoyed now I have spent all that time making the fondant details for the whole cake. Also, I have a question regarding the chocolate cake recipe you use for this which requires 8 eggs (so to make 1.5 quantities will require 12 eggs!!). Does it really need this many eggs or is this a typo, as this seems like a lot of eggs? The video of you making the cake batter only looks like you pour in 4 eggs.
Hi Rachel, The cake in the video is made using the template printed on A4 paper. Make sure your printer is not shrinking to fit the page (i.e. select do not scale, or 100%). If you’ve already scaled as you printed and made the details I’d suggest do it the size that you have and make some extra cupcakes with flat lego tiles on top of the frosting for extra cake quantity.
Yes it uses that many eggs, this is a really rich chocolate cake. You can a different recipe of your choosing with less eggs and no chocolate it will not taste as moist and chocolatey. I like cakes to taste as amazing as they look so this is my favorite recipe.
We did it!! And we llover the cake!! My son just wanted to play! Thanks we are lego fans too. I follow you from México.
This is amazing Harumi! Well done!
Brought your templates and have made cake. Turn out ok but the cake appears a lot smaller than yours. Do your templates need enlarging??
Hi Helen, The templates shouldn’t need enlarhing. Just make sure you are printing at 100% and not scaling in your printer properties.
Hi Ann I love your desserts they are so yummy! 🙂
Hi, we luv ur cakes and make one every year. In the fondant listing, no blue fondant? How much will I need?
Hi Nicole, Thanks for letting us know. You will like need around 350g.
Hi Ann,can you use chocolate instead of fondant for the base?
Hi Bella, A chocolate base would work well.
Could you please make a school cake?????????
I love Lego and this cake
proved that Lego can become even a cake with a little practice!
Thanks Ben!
You should make a black cat cake. Have your sons done chubby bunny or not. If not could they. Chubby bunny is when you stick marshmallows in your mouth and say chubby bunny.
Hi Ann love this cake I live in England and I’m having trouble finding the moulding gel can you give me any advise please my last Lego cake I had to cut out every block and every little circle for on top of must have been 200 blocks I could really use the gel
Thanks Justine xx
Hi Justine, In Australia this shop has it (http://www.cakeornament.com.au/Product/edible-moulding). In the USA or international this is similar but a little thicker: http://www.composimold.com/make-your-own-unique-molds-and-casting.html .
Hi am afther a birthday cake please would you help me would you send me links to what you have please x
WOW! AMAZING!! That was so cool! You have so much talent!! 🙂
thanks ilovechocolate 😀
hey Ann,
this and all your other cakes are amazing thank you so much for putting in the effort for us! I suggest you do collaborations with MyCupcakeAddiction and Cookies Cupcakes and Cardio they both are on youtube as well. They make great cakes as well just like u. I think when 2 or more great artists come together and make something it’ll leave the world shocked (in a good way!) Any way keep up the good work i love you and your show and love baking im only 12!
-Have a great day!
Hi navdeep, I’ve arranging a collab with Jen, should be in the next few months 😀
hey Ann,
Absolutely Fantastic Anne! My son is also 4 and is obsessed with the Police Lego. I made the fire truck last year using your template. That was a blessing because it came out perfect thanks to all your hard work. I think I’ll have to make this one for his 5th Birthday.
Make sure you post a pic!
Really your surprised that you have to buy the templates? Why in the world would it be free? The work and effort that is put into doing it so we can just pick it up and go with it. I think that is fine to pay for templates and be able to make the amazing cake. Way cheaper than paying a bakery if you ask me.
I was a bit disappointed due to the fact we have to buy templates
Hi Elle, If you only knew how much work Ann has to put into these, the hours of cooking and constructing, the testing and retesting to get them just right. Just so you can print it out and use it straight away. I am surprised that she doesn’t charge more. It is a very small price to pay for something you can use when ever you need it.
Amazing once again. Your son must of been thrilled with a cake like that. Thanks again for all your hard work..