3D Thomas Train Cake Recipe

Would your Thomas obsessed pre-schooler love a themed birthday party with an amazing cake in the shape of the famous little blue train? Well, you’re not alone. Thomas the Tank Engine toys are amongst the best-selling preschool items in the US, UK and Australia. Kids everywhere love a Thomas party and, thankfully, plenty of other brave parents have paved the way (check out their party ideas here). And read on for step by step instructions to make the 3D Thomas train cake.

Train Cake Template
Template for cutting the cake and the fondant pieces (note this is a digital download you will need to print it out). After payment do not close your screen, follow the links to download the template. For tutorial click on train image.

Cake This Thomas cake will serve 40 people, you can scale it down if you have less guests.
Cake two and a half times the rich chocolate cake recipe baked into five trays 25cm (9.84 inches) x 38cm (14.96 inches) baked at 180C (356 degrees Fahrenheit) for 20 minutes.

thomas train cake tutorial

Fondant for thomas train cake

400g (14.11 ounces) black fondant
650g (22.93 ounces) blue fondant
450g (15.87 ounces) red fondant
30g (1.06 ounces) yellow fondant
160g (5.64 ounces) grey fondant
Note: Fondant quantities are actual amounts used on the cake allow extra for rolling out.

thomas train cake fondant ann reardon

Frosting for train cake:
Two quantities of buttercream recipe in flavour of your choice
Two quantities of ganache recipe, allow to cool completely at room temp and then whip, use to cover the outside of the train before adding fondant. You can whip any left over buttercream into the ganache too if you like.

Equipment needed for train cake:

Fondant extruder (optional you can roll long skinny snakes instead this just makes it quicker and easier).

Circle cutters
Pizza cutter (optional)
drinking straw to cut small circles
rolling pin
non-stick baking paper
spray oil
metal piping tip or something with 1.7cm (0.67 inches) diameter to cut circle

thomas train cake tutorial

To make the thomas train face see this previous post:
thomas train cake face how to reardon


1: Make the fondant details ahead of time so they can dry out (see video)

2: Bake the cakes, prepare the frosting and make the simple syrup, this can be done 2 days before the party see above for quantities.

3: Construct and decorate the cake the day before the party, see the video for demonstration.

4. If it is very hot where you live store in the fridge otherwise room temperature is fine.

5. Enjoy the birthday boy or girls face when they see their Thomas cake.


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About Ann

Hi I'm Ann, food scientist, dietitian, wife, mum to 3 boys. Join me each week for desserts, chocolate and cakes.
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171 Responses to 3D Thomas Train Cake Recipe

  1. Gwen says:

    Hi my computer shut down before the template could finish downloading.
    How can I get the template? I paid on 8/18/2014 Please Help.

  2. hayley says:

    Hey in am going to make the Thomas cake but i need the template or the sizes in cm

  3. melanie says:

    hi, in your instructions it says to cover the cake in ganache. yet on the video, you cover it in frosting. im confused. which do you cover the cake in? the buttercream or the ganache? i am making it wednesday. Thanks!!!

  4. Helen says:

    Oh my GOD this is amazing! Going to attempt this myself :oS Hope it looks as incredibly as yours!!


  5. lisa says:

    A pic of the cake

  6. lisa says:

    What a great tutorial! This was my first time baking a birthday cake and using fondant.
    I absolutely enjoyed creating this 3d thomas.
    Just a heads up to those looking to create the thomas cake, follow instructions carefully and plan ahead!
    The hardest part was covering the whole cake with blue fondant without cracking or tearing the fondant. Overall I was very happy with the end result.

  7. di says:

    can you send the directions to my email

  8. di says:

    what link do i follow to down load thomas the tank engine . i have paid for it.

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