Mermaid Cupcakes

(Last Updated On: August 4, 2020)

Mermaid Cupcakes: Moist cupcakes decorated with fluffy buttercream and a mermaid tail. Gorgeous and easier than they look!

Just like our German chocolate cupcakes, Mermaid cupcakes start with a chocolate batter.

mermaid cupcakes

Do you have a mermaid fan in your life? What little girl isn’t! You have to make these together!This recipe for Mermaid Cupcakes turns out amazing every time, and i promise it is easier than it looks!

These easy Mermaid cupcakes are great for summer picnics, beach themed parties, or even a Little Mermaid Birthday party.

Mermaids are magical and will always have a special place in my heart.  With these mermaid tail cupcakes, you can create magical cupcakes that taste good too!


RelatedMargarita Cupcakes

mermaid tail cupcakes

Mermaid Cupcake Ingredients

For the Cupcakes

  • Triple Chocolate Cake Mix: You can use any flavor you like.
  • Eggs
  • Butter: I use butter instead of oil in my cake mixes. It gives a rich flavor, and perfect texture.
  • Milk: I also use milk instead of water. It gives a moist tender cupcake every single time.
  • Pink and Lilac Fondant: Fondant makes a great topping for these cupcakes. Look for moldable fondant, also called rolled fondant. It can be used to cover a cake for an ultra smooth glossy finish. Here we’ll use it in a mold to create our mermaid tails and sea shells. I used store bought, but homemade would work well too.
  • Cornstarch: This helps make our fondant easier to work with. You can also use powdered sugar here.
  • Cake Spray: Cake spray is an edible decorating spray that comes in many colors. It helps give our mermaid tail cupcakes a beautiful shimmer and shine. It can be used for many cupcake & cake decorations, so it is great to have on hand.

For the Frosting and Decorations

  • Butter
  • Powdered Sugar
  • Vanilla
  • Heavy Cream

Mermaid Cupcakes Supplies:

  • Mermaid Silicone Fondant Mold: We’ll use this for making our mermaid tails. I used this one from Wilton.
  • Seashell Silicone Fondant Mold: I used this one from Amazon.
  • Food Safe Paint Brushes: We’ll be using these to dust our molds so our lovely fondant work does not stick. I like these ones by Wilton.
  • Cupcake Liners
  • Cupcake Pan
  • Piping Bags and tips: I like to use the star tip for icing cupcakes.

mermaid cupcakes ideas

Mermaid Cupcakes Recipe

For the Cupcakes

  1. Prep Work: Preheat oven to 350 degrees F. Line cupcake pan with paper liners.
  2. Mix Ingredients: In a large bowl, combine cake mix, butter, milk, and eggs until well combined.
  3. Bake:Fill liners about 3/4 of the way full. Bake for 20-22 minutes. Cool completely.

For the Frosting:

  1. In a large bowl, cream butter. Stir in vanilla.
  2. Add powdered sugar a little at a time. Add heavy creamy as needed to reach your desired consistency.
  3. Add teal food coloring to ~1 cup of prepared frosting.

how to make mermaid cupcakes

For the Fondant Decorations

  1.  Coat hands in cornstarch.  Work fondant until it is soft and easy to work with. Coat silicone molds with cornstarch using food safe paint brushes.
  2. Use ~1 tablespoon of fondant per mold.
  3. Mold for 5-10 minutes before removing.
  4. Spray with cake spray, and allow to dry for one hour.
  5. Repeat with sea shell molds.


  1. Spread cupcakes with white frosting. Dip in brown sugar.
  2. Pipe teal frosting into the center of the cupcake. Attach mermaid tail.
  3. Repeat with sea shells.
  4. Add nonpareils as desired.

mermaid theme cupcakes

Can You Use Anything Else Besides Fondant?

If you prefer to not make the mermaid tails for these mermaid cupcakes using fondant, most craft stores sell something similar that is pre-made. Some are made of fondant or candy, while others are made of plastic. I prefer these DIY tails though as they are simple to make and only take a few minutes!

easy mermaid cupcakes

More Party Eats and Treats

Sonic Ocean Water Recipe

Mexican Street Corn Salad

Funfetti Dip

Ice Cream Cone Cupcakes


mermaid cupcakes

Mermaid Cupcakes

Mermaid Cupcakes: Moist cupcakes decorated with fluffy buttercream and a mermaid tail. Gorgeous and easier than they look!
Course Dessert
Cuisine American
Keyword Birthday, how to make mermaid cupcakes, Mermaid cupcakes
Prep Time 20 minutes
Cook Time 21 minutes
Total Time 41 minutes
Servings 24 Cupcakes
Calories 338kcal
Follow On Pinterest For More Recipe IdeasFollow @bakingbeautyblog or #bakingbeautyblog
Pin Recipe


For the Mermaid Tails and Sea Shells

For the Cupcakes

  • 1 Box Triple Chocolate Cake Mix
  • 3 Eggs
  • 1/2 Cup Butter Softened
  • 1 Cup Whole Milk

For the Frosting & Decorations


For the Mermaid tails and Sea Shells

  • Lightly powder your hands with cornstarch ,and work the fondant until it becomes soft.
  • Using a food safe paint brush, coat the silicon mold with corn starch.
  • Tear off a tablespoon of fondant and place into the tail mold.
  • Let sit for 5-10 minutes before flipping over the mold and carefully pushing out tails. Spray with silver cake spray. Allow to dry for one hour.
  • Repeat steps for the Seashells

For the Cupcakes

  • Preheat oven to 350 degrees F ,and line cupcake pan with paper liners.
  • In a medium bowl, combine the cake mix, butter,  and milk, and mix until combined.
  • Using a medium ice cream scoop, scoop the batter into the cupcake liners until about 3/4 of the way full. Bake in the oven for about 21 minutes. Cool completely.

For the Frosting and Decorations

  • In a large bowl, cream butter and vanilla until light and fluffy. Add powdered sugar a little at a time. Add heavy cream as needed to reach your desired consistency.   
  • Reserve 1 cup of frosting and add a few drops of teal food coloring. Place teal frosting into a piping bag fitted with the star tip. 
  • Scoop some of the white frosting onto the cupcake and smooth out using an angled spatula.
  • Dip the cupcake into the brown sugar to make a sand effect.
  • Pipe a dollop of the teal frosting onto the center of the sand. Place the tail into the teal frosting. Place seashells around tail.
  • Randomly place the nonpareils around the tail and seashells.


Calories: 338kcal | Carbohydrates: 49g | Protein: 2g | Fat: 15g | Saturated Fat: 8g | Cholesterol: 54mg | Sodium: 268mg | Potassium: 107mg | Sugar: 37g | Vitamin A: 430IU | Calcium: 61mg | Iron: 1.1mg
Tried this recipe? I wanna see!Mention @bakingbeautyblog on Instagram #bakingbeautyblog

What do you think of these Mermaid Cupcakes?