Ideas for Bob the Builder Kid's Birthday Cakes

Written by amrita chuasiriporn
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With his worldwide popularity, it's no wonder that lots of kids want Bob the Builder birthday cakes. The good news for you is that your options are only as limited as the amount of time you're willing to spend on decorating the cake. If you don't have a lot of time, make a moulded cake. If you have more time, your decorating options increase considerably.

Bob-Shaped Cake

Bob the Builder is a beloved star of his own children's television show. He's popular enough, in fact, that you can purchase Bob the Builder-shaped cake pans. Check the cake aisles of general merchandise stores, such as Target, for these pans. National craft chains that carry cake decorating supplies, such as Michaels, may also carry them. Simply mix batter according to your favourite recipe, or using a boxed mix. Butter the pan or spray it with non-stick spray, lightly flour it, then pour the batter in and bake according to your recipe. Use coloured frostings to bring your Bob-shaped cake to life once the cake has cooled.

Construction Close-Up

If you have conventional square and round cake pans in the house, use one of these shapes to bake a cake. Frost with your favourite frosting, then decorate the cake with a construction close-up scene featuring Bob the Builder hard at work constructing a house. Sculpt individual bricks out of fondant, like working with Play-Doh or modelling clay. You can either colour the fondant yourself using gel food colours, or buy pre-coloured fondant from anywhere that sells cake-decorating supplies. If you want to be more detailed, create small fondant building tools to scatter around the scene. Trowels, hammers, levels and yardsticks add character to your building site.

Bob Builds a Cake

Use a tube cake pan to bake any flavour cake your child likes. Frost the cake so that it looks like a wall of cartoon bricks. Sculpt Bob the Builder out of fondant and put him in the hole in the centre of the cake, holding a brick and a trowel, so that it looks like he's building the cake. Depending on how you sculpt it, you may be able to simplify your job by only sculpting Bob's head and torso rather than his whole body, since the cake will hide most of it anyway.

Large Construction Scene

Perhaps the child in question is very outgoing. If that's the case, consider including other builders on the construction site besides Bob. Use fondant to sculpt simplified versions of your child's best friends, as builders, to help Bob on a bigger construction site. If many children will be attending the party, plan the site on a rectangular half-sheet or sheet cake. Ideas include a finished house or houses next to one still under construction, with Bob and friends at work. Incorporate construction vehicles into a cake like this to add visual interest, such as bulldozers, cement mixers and cranes. Sculpt these with fondant if you have time and inclination, or use toy versions. If you prefer, add other characters from Bob's world, such as Farmer Pickles, Wendy and Bob's cat Pilchard.


Be careful if you use toys to decorate cakes. Unless toys are specifically intended for use as cake decorations, they may not be painted with materials that are safe for contact with food. Toys intended for very young children may be considered safe, as manufacturers assume that children will put these toys in their mouths. As such, you may find Bob the Builder toys that fit the bill. If you want to use other toys but are unsure whether or not they are food-safe, use them as table decorations around the cake instead.

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