Introduction: Spongebob Cake

Picture of Spongebob Cake

Perfect for parties, and...little kids. And me.

Step 1: The Cake

Picture of The Cake

You have several options for the actual cake. You can buy a blank sheet cake, make it from a mix, or do it the good old-fashioned honest way and make it from stratch like I did.

To make it from stratch, you need:

2 1/3 cups self-rising or all purpose flour (if you do not have this or are not sure if it is self rising, use a teaspoon of baking soda)

1 1/2 cups sugar

1/2 cup shortening (I was out, so I used vegetable oil. You could also use butter.)

1 cup milk (I was out of this as well. So I used a half cup of evaporated milk and a half cup of water.)

1 teaspoon vanilla flavoring ( I used vanilla extract. You should read recipes more carefully than I do.)

2 eggs

Mix the flour, sugar and shortening well. Add milk and flavoring gradually, scraping bowl frequently. Add eggs. Beat for 2 more minutes.

Take baking pan and grease with butter, oil or pam. Flour lightly. Pour batter into 9" pans. Bake for approx. 35 minutes at 350 degrees.

Step 2: Frosting

Here, too, you can either cheat and buy ready-made frosting (aka "the smart way") in the colors you want, or you can make the frosting and color it yourself.

Method 1

You'll need:

4 cups sifted confectioners sugar (approximately 1 lb.)

1 cup solid vegetable shortening ( I used butter)

1 teaspoon vanilla extract

2 Tablespoon milk or water

Food coloring

Sift confectioners sugar into a large mixing bowl, set aside. Cream shortening, vanilla and milk or water. Gradually add sugar and mix on medium speed until all ingredients have been thoroughly mixed together. Blend an additional minute or so, until creamy.

Don't mix in the food coloring unless you're ready to frost right now.

Step 3: Decorating

Picture of Decorating

Wow, yet another place where you have two options. Here they are to either decorate this cake yourself, or bribe/force/coerce somebody to do it for you.

In case you don't know what Spongebob looks like, here is a picture to print out and refer to.

Step 4: Skip This If You Bought Your Frosting

You need several colors for Spongebob.
Here's how to make them:

Mix about a cup, give or take, of your white frosting you made earlier. Mix with one or two drops of yellow food coloring. Mix until satisfied with color. Set aside.

Mix about a cup of white frosting with red and green food dye. It's tough to get the correct proportions. Just do trial and error till you get it. Set aside.

Mix about half a cup of white frosting with yellow frosting. Add just a little green. Mix well. Set aside.

Pink, red, and maroon: Mix about a cup of white frosting with just a little red coloring. Set aside for now. We'll do the pink parts first, then red, then maroon, adding color as needed. No need to make three seperate cups of frosting.

This one's tough. I mixed some leftover brown with some blue to get black.

Step 5: Frost!

Picture of Frost!

Frost upper 1/2 to 1/3 of cake with yellow.

Add a strip of white one or two inches wide directly below.

Frost the remaining cake with brown frosting.

Step 6: Frosting...

Picture of Frosting...

Make two triangles without tops on the white. This makes his collar.

Make two targets for his eyes. Give him three eyelashes per eye.

Step 7: More Frosting...

Picture of More Frosting...

Make his mouth. It's kind of a U with a top. Be sure to put two lines at the corners. Give him two buck teeth and under those make two little bumps or hills. They make his tongue.

Step 8: Endless Frosting

Picture of Endless Frosting

Make his nose (which is rather long)between his eyes and above his mouth. It's an uneven loop.

Give hime four little rectangles on the brown area (his pants). Mine look more like squares. These are his belt loops.

Step 9: Frosting...

Picture of Frosting...

Take the pink frosting and make two loops above the corners of his mouth. Between those and the black lines, make an equilateral triangle out of pink dots.

Give hime a pink squiggle for a chin.

Fill in the two bumps under his teeth. Now it looks like his tongue.

Step 10: I Love to Frost

Picture of I Love to Frost

Take your frosting and add more red to it. Make his tie as shown. It's ok if it overlaps the belt loops a bit.

Add more red food dye. Fill in the rest of his mouth with the nice dark red you get.

Step 11: Boy, I'm Sick of Frosting

Picture of Boy, I'm Sick of Frosting

Take the green frosting and make circles on him. These are his holes(He's a know, SPONGEbob).

Take the white frosting and fill in the outer rim of his eyes. Now would also be a good time to fill in his teeth whith white.

Fill in the inner rim of his eyes with the blue.

Frosting tips:

Take a glass of water and wet your finger in it. Then run your finger on any uneven spots to get a nice, flat, smooth frosting job.

Use a butter knife to smooth over big areas first.


BLASTFEMI (author)2011-01-06

I love spongbob cake! I made one using rice crispie treats & candy-licorice, airheads for the tongue/socks/tie and sandwich cookies for hands/feet. I rolled his pants in sweetened cocoa powder to make brown and outlined with the black can of icing that resembles cheese wiz ( in the way it dispenses.) A total hit at the party. It was all everyone could talk about.

Lithium Rain (author)BLASTFEMI2011-01-06

Wow - that's awesome! Thanks for taking the time to show that (have you considered an ible, or at least a slideshow?)!

spiritwolf7984 (author)2009-08-07

I was thinking about Fondant and chocolate cake so all i would need is blue black and white icing


Ooooo, that sounds good! If you do something like that, be sure to post it! (And link me :D )

An Villain (author)2009-07-18

you would not believe what the pirate said on spongebob!

An Villain (author)2009-07-02


didn't you read the message below, i was in a mood.

yes i did. if you do feel that way i am sorry.

i forgive you.

it is okay.



Lithium Rain (author)2009-03-04

Then why did you view this instructable?

Sorry, Ignore the last post. I'm in a mood with my computer's internet connection speed, really slow =(

No worries.

OK, thanks for forgiving me.

But good cake. My mum once made me one for my birthday, she hand iced it to look like a PCB, it took her hours on end!!

An Villain (author)2009-07-01

we made one like this only it was "plated" (colored) with M&M;'s

Lithium Rain (author)An Villain2009-07-01

Ooooo yummy...

An Villain (author)Lithium Rain2009-07-02

i know. you should have made it out of sponge cake.

Maya! (author)2009-06-03

My dad make a birthday cake for my sister just like that a few years ago. Yours looks alot neater tho. haha (:

Lithium Rain (author)Maya!2009-06-03

Haha, he's pretty popular, isn't he? Thanks for the comment! :)

DuctTapeRules! (author)2009-04-18

Need a big pineapple to put over it now...or a pineapple cake! Or a big marzipan pineapple

Hehe, that's a great idea!

Koosie (author)2009-03-04

Are you ready kids, Ay Ay Captain, I can't hear youuuuuu AY AY CAPTAIN OOOOH Who lives in a pineapple under the sea Spongebob Squarepants Absorbant and yellow and porous is he Spongebob Squarepants If nautical nonsense be something you wish Spongebob Squarepants Then drop on the deck and flop like a fish Spongebob Squarepants Spongebob Squarepants Spongebob Squarepants Sorry, couldn't help it :)

Lithium Rain (author)Koosie2009-03-04

>Sings along

Rainbow_Han (author)2009-01-26

how awesome is that!!! Well done!

Lithium Rain (author)Rainbow_Han2009-01-26

Thank you Rainbow_Han! :-)

pink_lemons_4ever (author)2008-12-22

Very Nice Cake I Would Make That Cake!

Thank you! If you do make it, I'd love to see pictures!

Sunny124613 (author)2008-08-07

really cool but one of the pics has spongebob with YELLOW teeth (someone forgot to brush...)

Lithium Rain (author)Sunny1246132008-08-07

Well, that was before I filled them in with white. ;)

Sunny124613 (author)Lithium Rain2008-08-07

yah, it was just funny. and you reply very quickly!!!!

I_am_Canadian (author)2008-07-07

That looks like a serious sugar-bomb.

It sure is!

canida (author)2008-04-16

A character cake that by definition doesn't need to be trimmed from its original rectangle. You, sir, are a genius of efficiency.

Lithium Rain (author)canida2008-04-16

Thank you! (That's ma'am. Not sir.:))

Goodhart (author)Lithium Rain2008-04-17

:-) The cake sounds good.....the character is one I am not fond of however, but if it gets eaten....I can deal with that LOL

Keith-Kid (author)Goodhart2008-05-27


Goodhart (author)Keith-Kid2008-05-27

I find him a bit rude at times. :-)

blue72 (author)Goodhart2008-06-22

sponge is not rude you are

Goodhart (author)blue722008-06-22

It is rude to post my point of view? ;-) I certainly did not mean to be brusque.

Lithium Rain (author)Goodhart2008-04-18

What do you have against the sponge? :-)

Goodhart (author)Lithium Rain2008-04-18

Nothing in particular....I just find him more annoying than, say Jimmy Neutron LOL (egads aren't I too old for this conversation LOL).

Lithium Rain (author)Goodhart2008-04-18

I hate Jimmy Neutron Lol...

Goodhart (author)Lithium Rain2008-04-18

Same here.... ;-)

blue72 (author)Goodhart2008-06-22

oohhhh me to

canida (author)Lithium Rain2008-04-18

Apologies - people make the same mistake with me, so I'm sympathetic. ;)

Lithium Rain (author)canida2008-04-18

Oh, no biggie. :)

shangrilarcadia (author)2008-04-20


About This Instructable




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