Most of what I found, if I found anything at all, referenced the "cut out a lot of little circles" approach, where after you cut your little rectangle you individually place every little Lego nub on top of it. Sorry, but this was NOT what I was willing to do. There was NO way I was going to make hundreds of itty bitty nubs to put on top of each Lego piece and in so many colors. Not to mention it really wasn't going to look super neat... and that is always my goal - a PERFECT cake. Yes I am very OCD about it!
So yes, I was up for spending the better part of two days but not a whole week on the Lego cake project. Call me lazy, but I am an engineer, and that's just what we are... lazy. We create things to do the work for us. So how was I going to accomplish that perfect Lego look? I really wasn't sure... good thing I got this order about a month in advance because like most of my cake projects their procedures ruminate in my head until it's cake time.
So I wanted a Lego mold. Something where I would NOT have to cut out little nubs. Something that looked JUST like a Lego piece. I searched and searched but could not find a Lego mold ANYWHERE! I had even ordered one that turned out to be the size of big Lego ice cubes! So if I wanted to get that perfect Lego piece look this meant I had to make the mold. I scoured my daughter's Lego toys and found the perfect little piece. For mold making instructions see materials below or you can buy them from us on our Etsy account: https://www.etsy.com/listing/178445300/fondant-lego-mold-for-cakes?ref=pr_shop.
Keep in mind this cake is all about prep work. If everything is well prepared putting it together will be the fun part! So here we go with the materials and steps to make a Lego cake. But if you want a cliff note version check out our youtube video:
Key Decorating Materials
2. Wilton OR Marshmallow Fondant* in primary colors: Red, Yellow, Green, and Blue
* This is recommended with molds and cutouts. These fondants have the right firmness, flexibility, and texture to keep mold shapes and create sharp cut outs. Updace marshmallow fondant recipe post to come.
3. Lego Name Plate: make your own with fondant or purchase from our Etsy account at https://www.etsy.com/listing/178458375/custom-name-fondant-lego-topper?ref=listing-shop-header-0
5. Chocolate Ganache (see instructions on our post here)
1. The Lego Blocks (for the top only) - minimum 2 days before
- A number of days before you want the finished cake make a number of Lego pieces for the top using the Lego mold and your different fondant colors. Push a ball of fondant large enough to fill the mold cavity and use a sharp knife to cut the excess fondant flush with the mold. Carefully pull the Lego piece out of the mold and re-square with a knife or spatula on a large tray dusted with cornstarch or powdered sugar. I recommend starting with the lightest fondant color and working your way to the darkest (I would do yellow, green, red, then blue). This way you can keep from cross contaminating your fondant colors and save yourself from dry hands due to over washing. The reason you want to do this well in advance is to allow your pieces to dry and therefore create 'sharp' looking blocks. Drier fondant is sharper looking fondant and sharp looking fondant always looks cleaner and gives a more finished look.
- Get a rough idea of how many pieces you need per color by estimating how many you will need to cover the top of your cake pan and cake board. I made a lot of green (because of the cake and the board - possibly around 40-50 pieces), a good amount of yellow (I think more yellow bring out the cake (about 20 maybe), and less of red and blue (probably about 10-15 each).
- Let the pieces dry for a full day or two (minimum overnight). You can save time by not fully drying but the pieces may not be as sharp looking. Store them on your trays in a cabinet out of sunlight to prevent them from fading or changing color.
- Once they are fully dry cut the Lego pieces evenly into 3 smaller pieces. DO NOT cut all the green pieces since you need a good amount of those for the cake board.
- They are now ready!
2. The Logo Name Plate Topper
- Since you have just worked with all of your colors you can make this easy peasy. The hardest thing is to get the Lego font.
- Google "Lego font", download it onto your computer, pick desired font size, put it on Word and print!
- Working on a youtube video for this but having upload problem:(...
3. The Cake
- Fill your cake as you normally would.
- Use chocolate ganache to coat sides and top of cake. Refrigerate to achieve a firm coating on your cake. While this is refridgerating start the side blocks:
4. The Side Blocks
- Roll out wide pieces of 4 different colors preferably using a pasta roller. I use a kitchen-aid one that attaches to my mixer. Tip: To get a thicker piece than the #1 setting reverse it - back the knob up. It will work just as well and give you a nice thick piece. I don't remember if I did this for the sides or if I used the #1 setting but there it is just in case:)!
- Let your pieces dry preferably for about an hour.
- While these are drying create your cutting guide. Using graph paper or engineering paper draw lines using a straight edge using the same width and length of your small molded Lego pieces (the dimensions of the final Lego piece after you have cut it into 3). I believe it is 2 graph blocks wide and 4 graph blocks long. See picture I know this sounds a little confusing.
- AFTER drying cut out these pieces using a small knife, a straight edge, and your paper guide. You will cut a lot faster this way (I told you I was lazy;-)). If you do not wait for proper drying the pieces will not cut as easily and as firmly.
- These I like to cut as I need them so you only really cut what you need. I found these hard to estimate quantity.
5. Put it all Together!!
- Ok so this is what I think is the fun part! Bring your cake out and position your green lego pieces on the board just a tad away from the cake leaving a small gap for the side pieces of the cake.
- Use "sugar glue" to get the pieces to stick.
- How to make Sugar Glue:
- Mix about 1/2 water and 1/2 fondant
- Microwave in 10-30 second increments
- Let sit for 15 minutes to set
- Paint the top of the cake with a thin coat of sugar glue. Start playing Lego's! Create your own Lego pattern on top of the cake. Overhang the border Lego's just a tad so the side Lego's will meet flush just under them.
- Match the side pieces of the first row to the border pieces with the appropriate color. Cut side pieces where necessary.
- Fill the remaining rows of the side freestyle!
- After it is all together cut the cake board to fit (so no cardboard is showing beyond the green board pieces) and place the name topper on the cake.
Happy Cake Decorating!!