Here, you’ll find 17 Spongebob cake ideas to celebrate a unique birthday and impress all your guests. If you’re looking for inspiration to place an order with your local baker, or you want to recreate one of these cakes yourself thanks to the guidance I provide, you’re in the perfect place.
How to find a Spongebob cake idea suited to your cake-decorating level?
I’ve come up with a system. The cake ideas are presented to you according to their level of difficulty. There are three categories :
What Are Beginner Cake Ideas?
These are easy cake ideas. If you’ve never decorated a cake before (or only did it once or twice), these are the cakes that you should pay attention to.
- What you’ll find: Beautiful cake ideas that only require basic cake decorating techniques. This is a great place to start your journey.
What Are Intermediate Cake Ideas?
Low Intermediate Baker: If you are confident that you’ve mastered the cake decorating basics, such as how to smooth a cake, but feel like you still have a lot of techniques to learn apart from this foundation, this category is perfect for you.
- What you’ll find: Cake ideas that require both basic decorating skills and one or two techniques that are a little bit more advanced. This is a great place to grow your cake-decorating skills.
High Intermediate Baker: If you’ve mastered both basic techniques and several more advanced cake decorating techniques, these cake ideas are made for you.
- What you’ll find: Stunning cake ideas that can be fairly challenging, but are a great place to get even better than you already are.
What Are Advanced Cake Ideas?
If you consider yourself an experienced cake decorator and have mastered most of the decorating techniques, including the use of fondant, then this is the perfect place for you.
- What you’ll find: Showstopping and challenging cake ideas, perfect to sharpen and maintain your skills.
The Grading System
Finally, I’ve also assigned a grade of difficulty to each cake inspiration: 1/5 being the easiest design and 5/5 being the hardest. The goal is to make the ranking the most accurate possible. You will find this to be particularly helpful if you happen to fall in the Beginner or the Intermediate Cake Ideas categories.
Growth Tip : This list is great a place to set goals about your cake decorating skills. Pin this post and come back later to tell us how far you’ve come in your cake decorating journey !
How to follow the instructions of the designs.
For the cake designs in the beginner category: I’ll provide written instructions on how to recreate the cake idea presented to you. Don’t hesitate to watch video tutorials about basic techniques such as how to smooth a cake.
For the designs in the intermediate category: I’ll provide some guidance on how to perform the more complicated techniques.
For the advanced category: you are an experienced baker, at this point, and you will find great opportunities to put this experience to use. To be completely honest, I cannot make myself several cake ideas from the advanced category, so trust your abilities and go for it.
Find the perfect Spongebob birthday cake idea for your baking skills.
Growth Tip : If you aim to get better at cake decorating, you should choose a cake idea that feels sligthly above your current cake decorating level. Get out of your comfort zone !
Spongebob Cake Ideas For Beginner Bakers
Here, you’ll find 2 easy Spongebob birthday cake decorating ideas perfect for beginner bakers.
Simple Spongebob Birthday Cake
Difficulty Level: 1/5.
What you will need :
- Enough frosting to cover your cake.
- Spongebob cake decorations.
- DIY edible sand.
How to recreate this cake?
- First, you must crumb-coat the cake to avoid any crumbs in your final design. Apply a thin and even coat of frosting with your offset spatula all around your cake.
- Smooth it with your bench scraper, holding it at a 45-degree angle on the cake while spinning your turntable. Your bench scraper isn’t supposed to move, only turn the table.
- It doesn’t have to be perfect as it only is the first coat. Chill the cake 20 to 30 minutes in the fridge (until your frosting sets).
- Then, apply a thicker coat of frosting and repeat the smoothing operation. Fill in any gaps and smooth the cake again. Repeat this operation until the cake looks smooth enough for you. Here, you’ll find a video tutorial of the covering process, if needed.
- Next, chill your cake in the fridge for 30 minutes or until your buttercream cover sets.
- Use a knife warmed with water if you want sharp edges on your cake.
- Finally, add your edible sand and cake decorations.
What you’ve learned :
As a cake decorator, the first technique you have to master is how to frost a cake properly.
Easy Spongebob Cake
Difficulty Level: 1,5/5.
What you will need:
- Enough frosting to cover your cake.
- A cake comb.
- Spongebob cake toppers.
- Sprinkles.
How to recreate this cake?
- First, crumb coat and cover your cake as explained in the previous cake design.
- Then, use your cake comb using the same technique as with the cake scrapper to create texture.
- Make sure to clean your cake comb every time you make a complete turn around your cake.
- Next, chill your cake in the fridge for 30 minutes or until your buttercream cover sets.
- Use a knife warmed with water if you want sharp edges on your cake.
- Finally, place your sprinkles and your cake decorations on your cake.
What you’ve learned :
Adding some texture to your cake design is an easy way to elevate its look.
Spongebob Cake Ideas Perfect For Intermediate Bakers
Here, you’ll find 8 Spongebob cake ideas perfect for intermediate bakers.
Blue Spongebob Cake
Difficulty Level: 2,5/5 (Low-Intermediate).
A little guidance
To recreate this beautiful layered buttercream effect you’ll need to add a new buttercream layer once your buttercream cover has had time to set. Then, smooth it and use your cake scrapper on the new layer as explained previously. Use a leaf piping tip to recreate the buttercream seaweed.
Pink Spongebob Cake
Difficulty Level: 2,5/5 (Low-Intermediate).
Don’t hesitate to turn it into a birthday cake for boys by switching the buttercream color to blue or green.
A little guidance
The secret to be able to give life to all kinds of creations on your cake is the buttercream consistency. To recreate these iconic Spongebob doodles check out this buttercream consistency tutorial.
Spongebob Sheet Cake
Difficulty Level: 3/5 (Intermediate).
A sheet cake is a great idea if you’re hosting a lot of people but not enough to make a tiered cake. Also, they’re easier to cut into party servings.
A little guidance
Using silicon molds to shape your fondant decorations is a quick and easy way to elevate your cake’s look. Make sure to check out this fondant silicon mold tutorial to get the best tips and tricks.
Spongebob Mini Cake
Difficulty Level: 3,5/5 (High-Intermediate).
This kind of Spongebob small cake (bento cake) is perfect for small celebrations for one two or three people.
A little guidance
To create cool buttercream designs on your cake without too much stress and struggle, use the buttercream transfer technique.
Spongebob Heart Cakes
Difficulty Level: 3,5/5 (High-Intermediate).
Heart cakes are all the rage these days, so I could not skip Spongebob heart cake ideas. As you can see, you can opt for bolder or softer looks depending on your personal preference.
A little guidance
To create a heart cake at home you can easily use your usual round cake pans and DIY them.
Spongebob Drip Cake
Difficulty Level: 4/5 (High-Intermediate).
A SpongeBob cake design would also make a great birthday cake for a one-year-old.
A little guidance
Drip cakes have become a classic in the decorating industry, if you want to make your own check out this white chocolate drip cake tutorial.
Fondant Spongebob Cake
Difficulty Level: 4/5 (High-Intermediate).
If you’re more of a fondant fan, most of the buttercream cakes from this list can be turned into fondant-covered cakes with a little bit of creativity.
A little guidance
Check out this Spongebob fondant tutorial to recreate your own Spongebob cake decorations.
Spongebob Cookie Cake
Difficulty Level: 4,5/5 (High-Intermediate).
Decorated sugar cookies are a great homemade and edible alternative to store-bought cake decorations.
A little guidance
If you’re ready to challenge yourself and make them yourself check out this trustworthy sugar cookie recipe by the Preppy Kitchen.
Spongebob Cake Ideas For Advanced Bakers
These 5 Spongebob cake ideas will be perfectly suited to experienced cake decorators.
Buttercream Spongebob Cake
Difficulty Level: 5/5.
If you’re a true buttercream lover, you’ll be a fan of this buttercream SpongeBob cake.
Tiered Spongebob Birthday Cake
Difficulty level: 5/5
If you’re planning on hosting a big party, a tiered cake is the best option and it gives you more room to express your creativity.
Square Spongebob Cakes
Difficulty Level: 5/5
A square cake would obviously be an amazing shape for a Spongebob birthday cake.
3D Spongebob Cake
Difficulty Level: 5/5
Finally, you could also go all in with a 3D Spongebob cake.
If you’re looking for more cake ideas, check out my other birthday cake ideas for children, men and women.
Did you enjoy these Spongebob cake inspirations? Sharing is caring! Pin this post to come back to it.
Please let me know in the comments if you’d like some specific cake ideas and/or tag me on Instagram @theperfectcakeidea. I’d also love to see your creations.
