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Unicorn Cake Recipe How to Make It rainbow birthday cake 2022

Unicorn Cake Recipe

Unicorn Cake Recipe How to Make It rainbow birthday cake 2022

I share with you the recipe and the step-by-step process to make a Unicorn Cake, so cute and colorful that it will give any party a magical and fun touch

Hi Hi!

Well, taking advantage of the fact that we are in the middle of summer and that children’s parties abound at this time, I want to share with you this very cool Unicorn Cake that I made at the end of last May for my eldest daughter’s 7th birthday.

Perhaps this post is not the most graphically explicit, but the truth is that it is tough to document the process of a cake that I make for one of my daughters’ birthdays. Except for what I shared on my instastories, I didn’t have much time to document more. First, I am almost always doing more than one thing at a time (like baking the bread while I make the food and so on). Second, because you will never be able to take a more or less decent photo when it comes to splitting it 😅

In addition to the fact that at that time, this mother was busier enjoying those moments with the birthday girl (and taking care that they did not do barbaric things with the knife, haha), there were also ten other children on top of the table that, well, no, impossible to take photos like that.

And that’s not to say we don’t take photos; we have the 15 required cake party photos. But we keep those for our family memories 🙂

Unicorn Cake Recipe How to Make It rainbow birthday cake 2022


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I think the only times I’ve been able to successfully photograph my daughters’ birthday cakes has been because I’ve made a double cake 😅 That’s how it was with the Vertical Rainbow Cake and the Chocolate Cake with Blackberry Frosting. If not, there is no way.

I love to make birthday cakes, and with my daughters, I blow the fence. The calmer and original the cakes are, the better, sometimes even to the point of being complicated. But what am I going to tell you? I love to please you! But making cakes to share on the blog is something I can’t afford, at least not for now.

To see the recipe for Chocolate Cake with Blackberry Frosting, visit this post.

And don’t take this the wrong way; it’s not because I don’t want to share new ideas with you, but what would I do with so much sugar available to my daughters? If you are a mother, I know you understand. With all the celebrations in the year, it is more than enough.

That doesn’t stop me from wanting to share the idea with you, even if it’s in writing, and with the best photos I could take on such a busy day.

Also, did you know that this was my first attempt at a Zero Waste party? So, it was worth documenting!

You can read ten tips to have a Zero Waste party in this post.

So good; although I can’t show you thousands of photos of the process or what the Unicorn Cake looked like inside, I want to share the recipe to make it and the written process in the best possible way.

I hope you are encouraged to do so! And if not, then seeing this cool cake doesn’t take anything away from us.

For the bread, I decided to make a Funfetti Cake, or Confetti Cake, which is nothing more than a vanilla bread with colored sprinkles, which simulate confetti 😉

I used my favorite Buttercream recipe for the topping, the same one I used for the Vertical Rainbow Cake. I love it because it is not only buttery, it is not cloying, and the consistency is perfect for decorating.

To see the recipe for the Vertical Rainbow Cake, visit this post.

Let’s go to the Unicorn Cake recipe!


Preparation time: 40 minutes

Cooking time: 25 minutes

Unicorn Cake Recipe How to Make It rainbow birthday cake 2022
Unicorn Cake Recipe How to Make It rainbow birthday cake 2022

Total time: 3 hours 5 minutes

Servings: 20 people

I share with you the recipe and the step-by-step process to make a Unicorn Cake, so cute and colorful that it will give any party a magical and fun touch!


For the Funfetti Cake

  • Four 8-inch round pans
  • 3 cups flour
  • 1 1/4 tablespoons baking powder
  • 1/2 teaspoon sea ​​salt
  • 1 1/3 cup milk at room temperature
  • Eight egg whites (medium) at room temperature
  • 120 grams butter at room temperature
  • 2 cups sugar
  • 2 1/2 teaspoons Mexican vanilla
  • 1 1/4 teaspoon almond extract
  • 1/2 cup colored sprinkles

For the buttercream

  • Three sticks of butter (339gr) at room temperature {1}
  • 3 bars cream cheese at room temperature
  • One dash vanilla
  • 3-4 cups sifted icing sugar

for the decorations

  • 250 grams white fondant
  • edible gold powder
  • edible pink powder
  • almond extract (or vanilla)
  • One wooden stick
  • One large and one smaller drop-shaped cookie cutter
  • Two chopsticks
  • Gel paint three different colors
  • Black Ice {2}
  • Day 1M
  • Day #18
  • sleeves to decorate

Step-by-step preparation

Prepare the Funfetti Cake

  • Sift together the flour, baking powder, and salt in a large bowl. Booking
  • In a medium bowl and using a balloon whisk, combine the milk with the egg whites. Booking
  • Separately, in the mixer bowl and with the balloon attachment, beat the butter with the sugar on medium speed until the butter is almost white and looks very light and fluffy.
  • While continuing to beat, add the vanilla and almond extracts.
  • Lower the speed and add the flour alternating with the mixture of the egg whites with milk and waiting for it to be well incorporated after each addition, in this order: ⅓ flour – ½ milk and egg whites – ⅓ flour – ½ milk and egg whites – rest of the flour. Beat for two minutes until the mixture is smooth and lump-free.
  • Turn off the mixer, add the colored sprinkles and mix thoroughly using a spatula.
  • Divide the mixture into four and pour into the previously greased and floured molds. {3}
  • Bake for 20 minutes at 180ºC (350ºF) or until the loaves are golden and firm on the surface, and a toothpick inserted comes out clean.
  • Let cool slightly before unmolding. Once unmolded, let cool completely. Once cool, cover with plastic wrap and refrigerate until ready to decorate if your time allows.
Unicorn Cake Recipe How to Make It rainbow birthday cake 2022
Unicorn Cake Recipe How to Make It rainbow birthday cake 2022

Prepare the decorations

  • Take some white fondant and make a thicker worm at one end and thinner at the other. Roll on the wooden stick using a small brush and water to stick the fondant to the bar and each other and let dry to harden.
  • Roll out another bit of fondant using a rolling pin and cut out the large cookie cutter’s two ears. Cut another two with the small knife. Using a paintbrush and water, glue the small shapes inside the large ones to form the ears. Pinch the bottom to make the crease of the ears and insert a toothpick vertically into each one to place them on the cake. Let dry to harden.
  • Put some gold powder on a small plate and add a few drops of almond extract to create a light paste. Paint the horn. Repeat this procedure with the pink powder to paint the ears, only the minor inner part. Let dry.

Prepare the buttercream

  • With an electric mixer and flat attachment on medium speed, cream butter is almost white.
  • Add the cream cheese in small pieces without stopping beating and beat until the two are incorporated very well.
  • Lower the speed and very carefully add the vanilla and the icing sugar little by little until it is a creamy and fluffy mixture and with the sweetness to your liking. Refrigerate until it’s time to decorate the cake.

Assemble the Unicorn Cake

  • Place a layer of bread on a plate, cake stand, or base wherever you want to have your cake. Pour a little buttercream on the bread and distribute it very well. Repeat this step above each cake layer until the last layer is placed. {4}
  • Cover the cake with a light layer of buttercream and refrigerate for 30 minutes. {5}
  • Remove cake from refrigerator and generously coat the entire cake with buttercream, smoothing the top and sides using a flat metal spatula. Refrigerate while you paint the buttercream.
  • Paint the remaining buttercream in 3 different colors. I used pink, fuchsia, and sky blue. Depending on the color scheme, you need about 1/2 cup of buttercream for two primary colors and 1/4 cup for a complementary color; in my case, this was blue.
  • Place one of your primary colors on a sleeve with the 1M sleeve and form roses on top, leaving a bit of space between them to cover with the other colors. Keep making roses to one side to simulate hair falling to one side. 
  • You will only do this on the middle of the cake surface, on the front at the top, and on one of the sides
  • Using the second color and the 1M data, make roses in the empty spaces following the same pattern as the previous step.
  • Now give it contrast with the complementary color making “kisses” in the spaces that have been left empty between the roses. Use tip 18 for this.
  • Finally, make more stars or kisses in any space with the primary colors.
  • Place the unicorn’s horn in the center of the cake and the ears on the sides.
  • Using the black icing, paint the eyes on the front of the cake. She places the icing in a plastic bag and cuts one of the ends, making a small hole so that the icing comes out thin.
  • Ready! Refrigerate cake, covered if possible, until it’s time to slice. {6}


  1. This amount is exact to decorate the cake; I wouldn’t say I like to put such thick layers of filling on the cover. If you wish, you can add one more stick of butter and cream cheese and a little more sugar if you like thicker layers.
  2. You can paint a dollop of buttercream with black gel paint if you want. I find it easier to use icing already ready to use because it is only for the eyes, and I feel that it takes a lot of paint to make the icing completely black. You can buy the icing here.
  3. If you want, you can use parchment paper to cover the molds; this way; it will be easier and safer to unmold them.
  4. In addition to the buttercream, I put chopped strawberries for the filling. It’s optional, but it’s delicious!
  5. It is called a crumb coat; this helps prevent breadcrumbs from rising when decorating the cake, and the decoration is clean and consequently more professional. It is unnecessary if you already have experience decorating cakes. Otherwise, I highly recommend it.
  6. What I did was refrigerate the cake in a dome without the horn and ears and put them on until it was time for the party.

Have you already made this recipe? Tag @sweetmolcajete on Instagram and use the hashtag #thesweetmolcajete. I love seeing your photos!

I hope you liked this Unicorn Cake. Honestly, it’s not just pretty; it’s also delicious. And when you dare to do it, take lots of photos and share them with me 🙂 I love seeing pictures of your creations 💕

Do not forget to visit this post, where I tell you about our experience, tips, and many ideas that helped me make this a party with less garbage (Zero Waste).

Frequently Asked Questions: Unicorn Cake

What is the meaning of Unicorn Cake?

According to Cosmopolitan, it all started with Jenna Rae Cakes, a bakery in Canada. These bakers had the unique idea to have the cake itself act as the body of the unicorn. Then, they topped the cake with creamy swirls to make a flowing mane, and added a silver horn and ears.

What icing do you use for a unicorn cake?

Prepare the decorating bag with tip 3 and black frosting. Pipe eyes on front of cake. Using remaining white frosting, attach star sprinkles to create the cheeks of the unicorn.

What does unicorn cake taste like?

It’s showing up in snack cakes, cereal, beverages, ice cream and gum, and it may taste like birthday cake, cotton candy, cherry or strawberry. Unicorns are popping up across the grocery store in all of their glittery glory.

Who made the original Unicorn Cake?

Canadian cake designer Jenna Rae has been credited with creating the unicorn cake at her bakery in Winnipeg a month ago. But it wasn’t long before imitations sprung up on social media and amateur bakers were giving the design a go.

How many layers do you need for a unicorn cake?

You will need approximately 6 to 6 ½ cups of white frosting to frost just the basic white all over the six layers of cake. Since I had to pipe the unicorn mane all over the cake with additional dyed frosting, I made homemade buttercream.

What does unicorn flavor taste like?

Its showing up in snack cakes, cereal, beverages, ice cream and gum, and it may taste like birthday cake, cotton candy, cherry or strawberry. Unicorns are popping up across the grocery store in all of their glittery glory.

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