Birthday cakes run the gamut from expensive fondant masterpieces to the affordable charm of a self-frosted box cake. This Lego birthday cake is the latter. Simple, sweet, and a nod to your Lego lover’s favorite hobby.
This year for his birthday, my seven year old requested a LEGO birthday theme, with a specific request for a LEGO cake. While store-bought cakes are convenient, I wanted to take a stab at a simple homemade LEGO birthday cake. I’m so glad I did! My homemade LEGO cake was easy, affordable, and made my son feel extra special!
Here’s a step-by-step guide to create a delicious, LEGO brick birthday cake that will surely make your child smile.
Step-by-Step Instructions to Make a LEGO Brick Birthday Cake:
Ingredients:
- 1 Box of cake mix (plus the ingredients listed on the box)
- 1 Tub of vanilla frosting
- Food coloring of your choice (red, blue, yellow, or green are popular LEGO brick colors!)
Some Helpful Supplies:
- Loaf pan
- Cupcake tin
- Spatula
- Toothpicks
Step 1: Bake the Cake
To start your LEGO birthday cake, prepare one loaf cake and a few cupcakes by following the instructions on the box of cake mix. Typically, one box of cake mix should be enough to portion your batter between the loaf pan and 4-6 cupcakes. Once the cakes are done baking, remove them from the oven and let them cool completely.
Step 2: Prepare the Frosting
While the cakes are cooling, take the vanilla frosting and mix in your preferred food coloring. Stir until you achieve the perfect LEGO-inspired shade. Red, blue, yellow, and green are popular colors for a LEGO birthday cake, but feel free to use any color that suits your theme! My son’s favorite color is currently orange, so that was my choice!
Step 3: Level the Cakes
Once your cakes are completely cooled, use a serrated knife to slice off the rounded tops of the loaf cake and two of the cupcakes. This will create flat, even surfaces to make assembling your LEGO birthday cake much easier.
Step 4: Assemble the LEGO Brick Cake
Now it’s time to assemble your LEGO birthday cake. Place the loaf cake cut-side down on a serving platter. Take the two cupcakes and place them on top of the loaf cake to replicate the bumps on a LEGO brick. These cupcakes will act as the raised parts of the LEGO piece.
To secure the cupcakes in place, insert toothpicks through the cupcakes and into the loaf cake. This will keep everything in place while you frost the cake.
Step 5: Frost Your LEGO Birthday Brick Cake
The final step is frosting your LEGO birthday cake! Use the colored frosting to cover the entire loaf cake and cupcakes. Be sure to coat everything evenly for a smooth, polished look.
And that’s it! With just a few basic ingredients that you can create an easy, affordable homemade LEGO birthday cake for your next LEGO-themed celebration!
Additional Suggestions for your LEGO Birthday Cake:
- Make multiple LEGO brick birthday cakes in a variety of LEGO brick shapes:
- Examples:
- A square 8×8 pan with four cupcakes for the bumps
- A cupcake with a mini cupcake to make those LEGO buttons
- Two loaf pans connected lengthwise with four cupcakes to make a long rectangular LEGO brick cake
- Examples:
- Use multiple colors: If you’re feeling extra creative, you can make multi-colored LEGO birthday cakes by making multiple cakes and using different color frosting for each LEGO cake.
- Add LEGO figurines: For a fun touch, place small LEGO figurines or accessories on top of your cake as extra decorations.
Overall, I was very happy with how easy it was to make a LEGO cake for my son’s birthday and am looking for an excuse to try it again with a variety of different LEGO brick sizes and colors. With just a few ingredients, you can create an easy, affordable LEGO brick birthday cake. Whether you choose a single LEGO brick cake or a variety of cakes, just like the real LEGO, the possibilities are endless. Enjoy!
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