Welcome to a world of whimsical treats where baking meets creativity! If you’re searching for an effortlessly charming dessert that will delight children and adults alike, look no further than these utterly adorable Little Fishy Cupcakes. Imagine vibrant, playful fish swimming across a delectable cupcake canvas – and the best part? They are incredibly easy to create, requiring just a handful of simple ingredients like frosting and colorful M&M’s. Perfect for birthday parties, school events, or just a fun afternoon activity, these delightful fish cupcakes promise big smiles with minimal effort.

There’s a special kind of joy in bringing a homemade treat that truly stands out. I remember when my sister Laurie and I really outdid ourselves by creating the Crayon Candy Dish as a teacher appreciation gift for Allison’s preschool teacher. She still raves about it! So, when Allison’s birthday rolled around, and we discussed bringing cupcakes to her class, we knew we had to deliver something equally memorable but also manageable. With a grand Frozen birthday party extravaganza already in full swing, ease and cuteness were our top priorities. These charming fish cupcakes fit the bill perfectly. They were an instant hit with all the children and teachers, proving that sometimes, the simplest ideas make the biggest splash.
What makes these Little Fishy Cupcakes an absolute must-try? They combine the delightful experience of baking with the fun of simple crafting, resulting in a treat that’s not just delicious but also incredibly visually appealing. You don’t need any specialized baking or decorating skills to achieve this adorable look. If you can frost a cupcake and place candies, you can make these! They are perfect for anyone looking to add a touch of playful creativity to their dessert table without the stress. Let’s dive into the easy steps to create these underwater wonders.
Getting Started: Baking Your Base Cupcakes

Step 1: Prepare a Batch of Cupcakes. The foundation of any great cupcake is, of course, the cupcake itself. You have complete flexibility here! For convenience, you can opt for a high-quality cake box mix. If you choose this route, we have fantastic instructions on how to elevate a simple cake mix to taste just like it was made from scratch. A few simple tweaks, like adding an extra egg, using milk instead of water, or incorporating a dash of vanilla extract, can transform a humble box mix into something truly special.
Alternatively, if you prefer the satisfaction of baking from scratch, our yummy Homemade Vanilla Cupcakes recipe is an absolute winner. Its light texture and rich flavor provide the perfect canvas for your fishy creations. While we used vanilla cupcakes for our examples, don’t hesitate to experiment! Our Homemade Chocolate Cupcakes would also taste absolutely delicious and offer a delightful contrast to the colorful frosting and candies. Whichever you choose, ensure your cupcakes are completely cooled before you begin frosting. Warm cupcakes will melt your beautiful buttercream, leading to a runny mess. Patience is key for this initial step!
Crafting the Perfect Buttercream Frosting

Step 2: Prepare the Frosting. The secret to these irresistibly delicious and beautifully decorated cupcakes lies in the frosting. We highly recommend our Best Buttercream Frosting recipe. This isn’t just any frosting; it’s light, incredibly creamy, rich with buttery flavor, and absolutely divine. Its smooth consistency is ideal for frosting cupcakes evenly and provides the perfect sticky base for your M&M scales.
You’ll find the full recipe and detailed directions here. One generous batch of this delectable buttercream frosting will be ample for decorating approximately 18 cupcakes. When making the frosting, ensure your butter is at room temperature for the best results, as this will prevent lumps and create that signature silky-smooth texture. Don’t be shy with the vanilla extract; it enhances the overall flavor profile beautifully. The quality of your frosting truly elevates these simple fish cupcakes from ordinary to extraordinary, making every bite a delight.
Gathering Your Colorful M&M’s

Step 3: Organize Your M&M’s. This step is where the vibrant magic truly begins! You’ll need a large bag of M&M’s to ensure you have a good selection of colors. The key to creating visually stunning fish is to separate the M&M’s by color. This makes the decorating process much smoother and allows for creative color combinations.
For each Little Fishy Cupcake, you’ll need approximately 15 M&M’s to form the scales, plus two additional red M&M’s for the iconic fish lips. Having them pre-sorted into bowls or piles by color will save you time and keep your workspace tidy. This step can even be a fun activity for younger helpers, letting them participate in the cupcake-making process. Consider the colors you want for your fish; you can stick to a single color for a uniform look, or mix and match for dazzling rainbow fish variations. The possibilities are endless when you have a colorful palette of M&M’s at your fingertips!
Tinting Your Buttercream Frosting with Vibrant Hues

Step 4: Color the Frosting. Now it’s time to transform your luscious white buttercream into a vibrant spectrum of colors! For the best results and truly brilliant hues, we highly recommend using Wilton Color Right Food Coloring. This concentrated gel coloring allows you to achieve bright, vivid colors without needing to add excessive amounts, which can alter the consistency of your frosting. Gel colors are far superior to liquid food colorings for this very reason.
Start by dividing your prepared buttercream frosting into separate bowls – one for each color you plan to make. We split our batch into four equal parts to create a beautiful palette of yellow, blue, green, and pink frosting. Here are the simple formulas we used to achieve these delightful shades:
- Blue: 2 drops of blue food coloring
- Green: 3 drops of yellow food coloring and 1 drop of green food coloring
- Yellow: 3 drops of yellow food coloring and 1 drop of orange food coloring
- Pink: 2 drops of pink food coloring
Remember, a little goes a long way with gel food coloring. Start with fewer drops and add more gradually until you achieve your desired intensity. Mix each color thoroughly until it’s uniform. These bright, cheerful frosting colors will form the base of your fish, setting the stage for the fun M&M scales to come!
Crafting Your Little Fishy Cupcakes: The Decorating Process

This is where your Little Fishy Cupcakes truly come to life! Follow these simple steps to transform your basic cupcakes into an enchanting school of fish.
Step 5: Frost the Cupcake. Using a knife, a small offset spatula, or even a piping bag with a round tip, apply a smooth, even layer of your colored buttercream frosting onto each cooled cupcake. Aim for a slightly domed surface, as this will provide a nice canvas for your fish scales. The frosting should be thick enough to allow the M&M’s to adhere securely without sinking too deeply.
Step 6: Create the Fish Scales. Begin by placing a row of M&M’s in the middle of the cupcake, forming the first layer of “fish scales.” For a standard-sized cupcake, we found that about 6 M&M’s fit perfectly across the center, creating a nice, full body for the fish. Once your first row is in place, continue adding subsequent rows of M&M’s, slightly overlapping each row like real fish scales, working outwards from the center. Cover approximately half of the cupcake with these colorful M&M scales. You can use a single color for a streamlined look or mix two or three colors for a more vibrant, “rainbow fish” effect. The fresh, creamy frosting will act as a natural adhesive, holding the candies firmly in place.
Step 7: Add the Fisheye. A fisheye brings personality to your aquatic friend! We opted for convenient Wilton Candy Eyes for their ease and charm. Simply press one into the upper, unfrosted portion of the cupcake, above where your scales end. If you don’t have candy eyes, don’t worry! You can easily create a cute eye by placing a mini marshmallow on the cupcake and dabbing a small dot of black icing or an edible food marker in the center. This DIY alternative works just as well and adds a homemade touch.
Step 8: Form the Fish Lips. To complete your adorable fish, add two red M&M’s to create the fish lips. Place them side by side at the very edge of the frosted area, opposite the tail end of the scales, to form a cute puckered mouth. The red M&M’s provide a fantastic pop of color and really bring the fish to life, adding a touch of whimsy to each cupcake.
Endless Color Options & Creative Variations

Step 9: Admire Your Creations and Explore Variations. These Little Fishy Cupcakes are not only incredibly cute but also remarkably easy to make! The beauty of this decorating technique lies in its versatility, offering a spectrum of color options to spark your imagination. While we demonstrated using a single color of M&M’s for the scales, don’t hesitate to get creative.
We absolutely loved making some vibrant Rainbow Fish Cupcakes by simply using two or more colors of M&M’s for the scales. The technique remains the same – carefully overlapping the candies – but the result is a much more dynamic and eye-catching look. Imagine blue and green scales blending together, or yellow and pink creating a sunset effect. You could even create an “ombre” scale pattern, transitioning from one color to another across the fish’s body. The impact is tremendous, and it adds another layer of fun to the decorating process.
Consider using different shades of frosting for an even wider range of fishy friends. You could make a school of all blue fish, a mix of green and yellow, or a party of pink and orange. These cupcakes are the perfect project for busy individuals who want to achieve a high-impact dessert with a small time investment. They are a testament to the fact that you don’t need elaborate tools or techniques to create something truly special and memorable. Each cupcake is a little masterpiece, sure to bring joy to anyone who sees (and eats!) them.

Ingredients You’ll Need
- 18 Baked Cupcakes (your favorite vanilla or chocolate recipe)
- 1 batch of our Best Buttercream Frosting
- Large bag of M&M’s (separated by color)
- Wilton Color Right Food Coloring (or your preferred gel food coloring)
- Wilton Candy Eyes (or mini marshmallows with black icing for DIY eyes)
Equipment You’ll Need
- Mixing bowls
- Whisk or electric mixer (for frosting)
- Cupcake pan and liners
- Offset spatula or butter knife (for frosting cupcakes)
- Small bowls for separating M&M’s
Other Cupcake Recipes You Will Love
- Minnie Mouse Cupcakes
- Elmo Cupcakes
- Peppa Pig Cupcakes
- Cookie Monster Cupcakes
We hope you have as much fun making these adorable Little Fishy Cupcakes as we did! They are truly a project that delivers maximum joy with minimum fuss, perfect for making any celebration extra special. Share your delightful creations with us!
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