Mermaid Tail Under Sea

Featured in: Simple Sweet Treats

These whimsical mermaid tail sweets blend soft sugar cookies with colorful, shimmering buttercream frosting and candy pearls for decoration. The dough is rolled thin and cut into ocean-inspired shapes, then baked to a delicate golden edge. After cooling, they are adorned with vibrant tinted buttercream using piping techniques, adding a magical, festive touch. Perfect for themed parties or celebrations, this delightful treat offers a medium skill challenge and yields 24 beautifully decorated bites.

Updated on Tue, 02 Dec 2025 11:28:00 GMT
Shimmering mermaid tail sweets with vibrant buttercream and candy pearls, a truly whimsical treat. Save to Pinterest
Shimmering mermaid tail sweets with vibrant buttercream and candy pearls, a truly whimsical treat. | amberkettle.com

Whimsical, colorful treats inspired by the ocean, these mermaid tail sweets combine soft sugar cookies with shimmering buttercream and candy pearls &mdash a magical dessert perfect for parties or special occasions.

I first served these mermaid tail cookies at a summer party and they were an instant hit with both kids and adults alike.

Ingredients

  • For the Sugar Cookies: 2 1/2 cups (320 g) all-purpose flour, 1/2 teaspoon baking powder, 1/4 teaspoon salt, 3/4 cup (170 g) unsalted butter, softened, 1 cup (200 g) granulated sugar, 1 large egg, 2 teaspoons vanilla extract
  • For the Buttercream Frosting: 1 cup (225 g) unsalted butter, softened, 3 cups (360 g) powdered sugar, 2 tablespoons milk, 1 teaspoon vanilla extract, Gel food coloring (teal, purple, pink, blue)
  • For Decoration: Edible shimmer dust or glitter, Candy pearls or sprinkles

Instructions

Step 1:
Preheat oven to 350°F (175°C). Line two baking sheets with parchment paper.
Step 2:
In a medium bowl, whisk together flour, baking powder, and salt.
Step 3:
In a large bowl, beat butter and sugar until light and fluffy. Add the egg and vanilla, mixing until combined.
Step 4:
Gradually add the dry ingredients to the wet, mixing until a soft dough forms.
Step 5:
Roll out dough on a lightly floured surface to 1/4-inch (6 mm) thickness. Cut out mermaid tail shapes using a cookie cutter.
Step 6:
Place cookies on prepared sheets and bake for 10–12 minutes, until edges are lightly golden. Cool completely on a wire rack.
Step 7:
For the frosting, beat butter until creamy. Gradually add powdered sugar, milk, and vanilla, beating until fluffy.
Step 8:
Divide frosting into 3–4 bowls. Tint each with a different gel food coloring.
Step 9:
Using piping bags with star or petal tips, pipe colored buttercream onto cooled cookies to create mermaid tails.
Step 10:
Dust with edible shimmer and decorate with candy pearls or sprinkles as desired.
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| amberkettle.com

My family gathers every summer to make these cookies together, making sweet memories with each batch.

Required Tools

Mixing bowls, electric mixer, measuring cups and spoons, rolling pin, mermaid tail cookie cutter, baking sheets, parchment paper, piping bags and decorative tips, cooling rack

Allergen Information

Contains wheat (gluten), eggs, and dairy (butter, milk). Contains food coloring & check for sensitivities. Always verify ingredient labels for potential allergens.

Nutritional Information

Calories: 210 per cookie. Total Fat: 10 g. Carbohydrates: 28 g. Protein: 2 g.

Imagine the ocean! Colorful mermaid tail sweets, frosted with swirled buttercream and edible glitter. Save to Pinterest
Imagine the ocean! Colorful mermaid tail sweets, frosted with swirled buttercream and edible glitter. | amberkettle.com

These mermaid tail sweets add a magical touch to any celebration and are sure to delight your guests.

Recipe FAQs

What type of flour works best for the sugar cookies?

All-purpose flour is recommended to achieve a tender yet sturdy cookie base that holds the intricate mermaid tail shapes well.

How can I get buttercream frosting to shimmer like the sweets shown?

Incorporate edible shimmer dust or glitter after piping the tinted buttercream to create a sparkling, underwater effect.

Can I prepare the cookie dough ahead of time?

Yes, the dough can be chilled and stored before rolling out and cutting, which helps with cleaner shapes and easier handling.

What tips are ideal for piping the mermaid tail designs?

Star or petal piping tips work best to create textured, dimensional scales and tail details with the colored buttercream.

Are there any suggested flavor variations for the frosting?

Adding a drop of coconut extract to the buttercream adds a tropical flair that complements the ocean-inspired theme.

How should I store these decorated sweets to maintain freshness?

Keep them in an airtight container at room temperature for up to two days, or refrigerate for longer storage while allowing them to reach room temperature before serving.

Mermaid Tail Under Sea

Soft sugar cookies shaped like mermaid tails with vibrant buttercream and sparkling candy pearls.

Prep duration
40 min
Time to cook
12 min
Total duration
52 min
Created by Molly Easton


Skill level Medium

Cuisine International

Makes 24 Portions

Dietary details Meat-free

What You'll Need

Sugar Cookies

01 2 1/2 cups all-purpose flour
02 1/2 teaspoon baking powder
03 1/4 teaspoon salt
04 3/4 cup unsalted butter, softened
05 1 cup granulated sugar
06 1 large egg
07 2 teaspoons vanilla extract

Buttercream Frosting

01 1 cup unsalted butter, softened
02 3 cups powdered sugar
03 2 tablespoons milk
04 1 teaspoon vanilla extract
05 Gel food coloring (teal, purple, pink, blue)

Decoration

01 Edible shimmer dust or glitter
02 Candy pearls or sprinkles

Directions

Step 01

Prepare Oven and Baking Sheets: Preheat the oven to 350°F. Line two baking sheets with parchment paper.

Step 02

Mix Dry Ingredients: Combine flour, baking powder, and salt in a medium bowl and whisk together.

Step 03

Cream Butter and Sugar: In a large bowl, beat softened butter and granulated sugar until light and fluffy. Incorporate the egg and vanilla extract until fully combined.

Step 04

Form Dough: Add dry ingredients gradually to the wet mixture, stirring until a soft dough forms.

Step 05

Shape Cookies: On a lightly floured surface, roll dough to 1/4-inch thickness. Cut mermaid tail shapes with a cookie cutter.

Step 06

Bake Cookies: Arrange shapes on baking sheets and bake for 10 to 12 minutes until edges turn lightly golden. Transfer to a cooling rack and cool completely.

Step 07

Prepare Frosting: Beat butter until creamy, then gradually add powdered sugar, milk, and vanilla extract. Continue beating until fluffy.

Step 08

Color Frosting: Divide frosting into 3 to 4 bowls and tint each with different gel food colorings.

Step 09

Decorate Cookies: Use piping bags fitted with star or petal tips to pipe colored buttercream onto cooled cookies, creating mermaid tail designs.

Step 10

Add Final Decorative Touches: Enhance decorated cookies by dusting with edible shimmer and applying candy pearls or sprinkles as desired.

Equipment needed

  • Mixing bowls
  • Electric mixer
  • Measuring cups and spoons
  • Rolling pin
  • Mermaid tail cookie cutter
  • Baking sheets
  • Parchment paper
  • Piping bags and decorative tips
  • Cooling rack

Allergy details

Be sure to look at every ingredient. If you have concerns, ask your healthcare provider.
  • Contains wheat (gluten), eggs, dairy (butter, milk), and food coloring. Check for sensitivities.

Nutrition Info (one portion)

Information shown is for general reference. Please speak to your doctor for nutrition advice.
  • Energy: 210
  • Lipids: 10 g
  • Carbohydrates: 28 g
  • Proteins: 2 g