• To make this unicorn birthday cake, you don’t need a pattern, you simply bake the 9×13 inch cake, cut it in half and use one half for the unicorn’s body.
• Then you cut the remaining half in half again and use one part for the head.
• The final piece of cake is then cut into two legs.
• You’ll have enough cake left over to create the unicorn’s horn or just to enjoy a snack. I did the later.

I wanted the interior of my unicorn cake to be just as magical as the exterior so I created a tie-dye rainbow swirl cake out of a white cake mix.

How to make a Tie-Dye Rainbow Unicorn Cake

• To make a rainbow swirl cake, you divide the cake batter into 6 bowls and color one bowl red, another orange, yellow, green, blue, and purple.
• Then you pipe or drizzle layers of color into the pan.

If you don’t want to go through that much effort, a simple white cake would be just fine.

How to decorate a 9×13 inch cake to look like a Unicorn

• To cover your unicorn cake, pipe frosting using a #21 star tip all over the cake.
  • It’s a fun way to decorate a cake like this, but you can simply frost the cake, if you prefer.
  • I didn’t go through the effort of making homemade frosting because I really like using Wilton’s Ready to Use Icing. It has a great flavor, is bright white, and pipes really nicely. (Update, Wilton changed their frosting formula, and it is not at all the same as it used to be, so I’d make homemade frosting to decorate this cake.)

Being I wanted my cake on a black background and I didn’t have a black board that was the right size I cut a cake cardboard to fit underneath my cake and set it on a table-sized black board. You can simply place your cake on a large cutting board, serving platter or cake board.

You won’t believe how easy it is to transform a 9×13 sheet cake into this delightful Rainbow Unicorn Cake with a colorful candy clay (modeling chocolate) mane and tail. When you cut into the cake you’ll reveal a swirl of rainbow coloring hiding inside.

Unicorn Cake

Did you, your mom, or grandmother ever bake a birthday cake from the Baker’s Coconut Cut-Up Cake recipe booklet? Mine did! Back in the 1960’s and early 70’s those cakes were all the rage. You simply baked one 9X13 sheet cake or 2 square or round cakes then cut them into simple shapes before assembling them to look like a lion, butterfly, duck, giraffe, dog, etc.

I am so excited to share this idea to make a simple Rainbow Unicorn Cake.

Cut-apart cakes are easy to frost and decorate and looked so cute. These simple cakes were popular years before shaped cake pans were available and the designs were easy enough for any home cook to recreate.

“HOW TO MAKE A RAINBOW CAKE FROM SCRATCH, EASILY!! FAIL-PROOF  BUTTERMILK VANILLA CAKE RECIPE THAT’S DELICIOUS, EASY AND DOWNRIGHT IMPRESSIVE!” 

“HOW TO MAKE A RAINBOW CAKE FROM SCRATCH, EASILY!! FAIL-PROOF  BUTTERMILK VANILLA CAKE RECIPE THAT’S DELICIOUS, EASY AND DOWNRIGHT IMPRESSIVE!” 

Listen, I don’t know too many foods that can make you feel all cheery inside than the sight of a beautiful, bright rainbow layered cake!

Just look at all those happy vibrant colors!! Wouldn’t you feel special if someone made this for you? Especially if you thought you were receiving just a regular ol cake? I know I would!

I made this rainbow cake this morning for my boys and they thought I was the coolest mom EVERRRRR! *toot toot*

They were so impressed and was all like “oh my God how did you make this!?”,  “You’re the best mom on this earth”, “You’re prettier than Beyonce mom!”, “I hope my wife is just as fabulous as you are!”…. Ok I added those last two lines but still…..you get the point…they were like, really happy.

The last time I made something rainbowish on my blog was when I made these rainbow (tie dye) cupcakes for Isaac when he was potty trained.

Wow how time flies! Now I’m potty training Ethan!

Ingredients

• 2 ½ cups white granulated sugar
• 1 cup butter softened
• 3 eggs
• 1 tablespoon vanilla extract
• 1 cup buttermilk
• 1/4 cup heavy whipping cream
• 3 cups all purpose flour
• 1 tablespoon baking powder
• 1/2 teaspoon salt
• Food coloring: red, yellow, blue, green

FROSTING

• 12 oz cream cheese softened
• 1 ½ cups butter softened (do not melt)
• 6 cups powdered sugar
• 1 tablespoon vanilla extract

Instructions

• Preheat oven to 325 F.
• Generously grease and flour 6 (9-inch cake pans.) I only had 3 pans so I had to bake in two rounds.
• In a large bowl cream together sugar and butter.
• Mix in eggs until thoroughly incorporated.
• Mix in vanilla extract, buttermilk and heavy cream.
• Mix in half of the flour, baking powder, and salt.
• When mixture is combined, mix in the rest of the flour.
• Divide the batter into six bowls (about 1 cup of batter per bowl)
• Add food coloring to each bowl to create a vibrant red, orange, yellow, green, blue, and violet. (see note on how to make colors)
• Pour each colored batter into the prepared pans and spread out into an even layer. (layers will be thin)
• Bake for 10-15 minutes or until center is set. Do not overbake. Keep a close eye on them as some ovens run hotter and these are thin layers.
• Remove from oven and let cakes cool in the pan until pans are warm enough to touch.
• Run a spatula around the edges of the pans to loosen the cake and then very carefully remove the cakes from the pans.
• Place on a cooling rack and cool completely.
• Meanwhile make the cream cheese frosting by creaming together cream cheese and butter.
• Mix in powdered sugar and vanilla.
• Place the violet layer down first and frost. Followed by the blue layer, green layer, yellow layer, orange layer and finally the red layer. (frost between each layer)
• Place a thin coat of the icing on the cake to create a crumb coat. This will make the cake even all around and seal any loose crumbs.
• Once the crumb coat is set, finish frosting the cake.
• Slice & serve!
• (To create more defined layers of frosting between the colors, place the frosted cake in the fridge to allow the cream cheese frosting to firm up before slicing)

LET’S EAT WITH LOVE

This is an example post, originally published as part of Blogging University. Enroll in one of our ten programs, and start your blog right.

You’re going to publish a post today. Don’t worry about how your blog looks. Don’t worry if you haven’t given it a name yet, or you’re feeling overwhelmed. Just click the “New Post” button, and tell us why you’re here.

Why do this?

• Because it gives new readers context. What are you about? Why should they read your blog?
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Can’t think how to get started? Just write the first thing that pops into your head. Anne Lamott, author of a book on writing we love, says that you need to give yourself permission to write a “crappy first draft”. Anne makes a great point — just start writing, and worry about editing it later.

When you’re ready to publish, give your post three to five tags that describe your blog’s focus — writing, photography, fiction, parenting, food, cars, movies, sports, whatever. These tags will help others who care about your topics find you in the Reader. Make sure one of the tags is “zerotohero,” so other new bloggers can find you, too.