The Octonauts have inadvertently crept into our lives, my 3 year old is an utter fan, verging on obsessed.
When it came to Max’s birthday there was no real question about the theme: it had to be Octonauts! However, the difficulty was choosing the exact subject for a birthday cake, which of his favourites would be the best for a birthday cake?
Captain Barnacles, the brave polar bear captain? He’s a real hero who can drive any ship or Gup, and is strong enough to lift even giant clams.
Or should it be Kwazii, the cheeky cat with a mysterious pirate past? He fears almost nothing (except spiders) and speeds like daredevil in Gup B.
Maybe Peso, the medic? This penguin always overcomes fear to help others hurt or in trouble.
In the end Kwazii won. The cheeky pirate and his speedy Gup-B were to have the starring role on my little birthday boy’s table.
With the theme set, it was time to get baking!
I made two Genoese sponges. (Here’s my video of making a basic sponge cake )
I like the Genoese sponge because it’s easy to make, it’s light and dairy-free. However, you can easily use other recipes, or even go-to ready mixes. I love Wright’s cake mixes (the chocolate fudge in particular) for their reliability and great taste.
Once the sponges had cooled we set about putting the filling in and the shape together. (I say we, because I tend to make birthday cakes with my friend Jennie, as we work really well together, complimenting each other’s skills well)
As a model we found a picture of what we wanted the cake to look like and then started carving away. This process needs a sharp serrated edged knife to ensure nice edges. The leftovers are great to have with tea or milk or to make bread and butter pudding from.
Our shape soon started to emerge- even without the icing it was looking like Gup-B.
Max had asked for a strawberry cake, but instead of flavouring the cake, we added strawberry jam to the buttercream (which was actually made from non-dairy butter).
The vessel was relatively small (enough for a party with 8-10 kids, but we had 8-10 adults), so we stood the carved cake onto another flat layer of cake. This was first cover with a blue-coloured white chocolate, that I melted, poured, smoothed over and let go hard, before placing the Gup B on it. This was our sea.
While Jennie carved away at the cake, I started to colour the fondant icing. This was quite a time-consuming and messy process. We added colour little by little, layering it, adding more red, green, blue, as they blended. Finally we got the colour we wanted.
The next step was to roll the icing out and cover the cake. Since our first cake- the Lightning McQueen cake- we’ve learnt a trick or two:
- Fondant icing rolls out much better when it’s been kneaded for a while and has warmed through
- Using a silicon baking mat (or greaseproof paper if you don’t have silicon) scattered with thin layer of icing/powdered sugar works
- On top of the fondant we’ve started using cling film to stop the fondant icing sticking to the rolling pin.
Once we were satisfied with the shape, we used strawberries and our cream cheese mix inside too.
We covered the cake in a thin layer of buttercream.
Then gently draped the rolled out fondant icing over the cake.
Here comes the delicate part of working the fondant gently around the cake and tucking it under. You have to make sure not to stretch it and work relatively fast, but gently as the fondant can crack. (as it did for us).
Once the cake was covered, the seating area cut out, the teeth added, it was time to put the cake in the fridge overnight. (Jennie said goodnight at this point and I carried on)
I made Kwazii, the fins and the tail part of Gup-B from marzipan. I bought a large pack of white marzipan from the shop and coloured that to my needs. As I had bits and pieces left over I also made some fish and starfish, which I sprinkled with a hint of holographic glitter.
Kwazzi took about an hour for me to make out of marzipan. Both he and the other marzipan pieces needed to go into the fridge as soon as possible, so they’d harden up.
The fins and tail had a couple of toothpicks inserted in them, sticking half out to be inserted on to the cake later.
I made up some blue jelly/ jello- this was to be the sea around the Gup-B.
Just before the party I assembled everything;
- The fins and tail were attached to the Gup B with the help of the toothpicks
- I scooped the jelly around the Gup B, scattered blueberries through it (one of Max’s favourite fruits) to create a wobbly seabed
- and embellished the sea bed further with marzipan fish and clams I’d made and candy strings.
The cake was an utter success! The flavours worked really well together and Max was overjoyed with his favourite Octonaut.