How to Decorate a Styrofoam Cake

Are you looking to create a stunning centerpiece for your next event or celebration? Whether it’s for a wedding, birthday, or other special occasion, learning how to decorate a styrofoam cake can be the perfect solution. This article will guide you through the process of transforming a simple styrofoam base into a beautifully decorated cake that looks almost good enough to eat.

Styrofoam cake decorating has become increasingly popular in recent years, offering a versatile and long-lasting alternative to traditional edible cakes. Whether you’re a professional baker looking to expand your offerings or a hobbyist with a passion for creative crafting, learning the art of styrofoam cake decoration opens up a world of possibilities.

In this comprehensive guide, we’ll take you through the essential supplies needed to decorate a styrofoam cake and walk you through each step of the decorating process. From preparing the base to applying icing and fondant, adding decorative elements, and finishing touches – we’ll provide you with tips and tricks for achieving a professional-quality result. Get ready to showcase your styrofoam cake masterpiece with confidence.

Supplies Needed for Decorating a Styrofoam Cake

When it comes to decorating a styrofoam cake, you will need a variety of supplies to achieve the desired look. Before starting your project, make sure you have the following items on hand:

  • Styrofoam cake dummy: The base of your project, this will be the “cake” that you decorate.
  • Icing/frosting: Whether you choose buttercream or royal icing, select a type that will adhere well to the styrofoam and is easy to work with.
  • Fondant: This versatile sugar paste can be used to cover the styrofoam and create smooth, clean lines for your design.
  • Food coloring: Both gel and liquid food coloring can be used to tint your icing and fondant for custom colors.
  • Piping bags and tips: These tools are essential for creating intricate designs, borders, and other details on your decorated styrofoam cake.
  • Edible decorations: Items such as edible pearls, flowers, sprinkles, and other embellishments can add an extra touch of elegance to your design.

In addition to these basic supplies, you may also want to have a turntable for easy decorating, a bench scraper for smoothing out fondant, and a small offset spatula for applying frosting. Taking the time to gather all necessary supplies before beginning your project will ensure a smooth and enjoyable decorating process.

Preparing the Styrofoam Cake Base

When preparing a styrofoam cake for decoration, it is crucial to start with a sturdy and well-prepared base. The first step in this process is to choose the appropriate size and shape of styrofoam cake dummy according to your design plan.

Once you have selected the right size, you will need to smooth out any rough edges or surfaces on the dummy using sandpaper or a knife. It is important to ensure that the surface of the styrofoam cake is even and free from any imperfections before moving on to the decorating process.

After smoothing out the surface of your styrofoam cake, the next step is to secure it onto a cake board or stand. This not only provides stability for decorating but also makes it easier to transport and display your finished creation. Use hot glue or royal icing to firmly attach the styrofoam dummy to the cake board, ensuring that it is centered and secure.

To create a more realistic look for your decorated styrofoam cake, consider covering the foam with a layer of aluminum foil or plastic wrap before applying any icing or fondant. This creates a smoother and more realistic surface for decorating and also prevents any chemicals from leaching into your edible decorations. Taking the time to properly prepare your styrofoam cake base will ensure a professional and polished finish for your final masterpiece.

Creating a Design Plan for Your Styrofoam Cake

Choosing a Theme and Color Scheme

The first step in creating a design plan for your styrofoam cake is to choose a theme and color scheme. Consider the occasion for which the cake will be used, such as a birthday, wedding, or baby shower. Think about the recipient’s preferences and any specific requirements they may have.

Once you have identified a theme, select a color scheme that complements it. Whether you opt for pastel shades, bold and vibrant colors, or something more muted and elegant, ensure that the colors work well together to create a cohesive design.

Sketching Your Design

After choosing your theme and color scheme, sketch out your design plan. This can be as basic or detailed as you like; the purpose is to give yourself a blueprint to work from when decorating the styrofoam cake.

Consider the overall shape of the cake, any specific patterns or textures you want to incorporate into the design, and where any decorative elements will be placed on the cake. This will also help you determine how much fondant or icing you will need for each part of the design.

Gathering Inspiration

If you’re struggling to come up with ideas for your styrofoam cake design plan, try gathering inspiration from various sources. Look at images of cakes online or in magazines, explore different decorating techniques, and consider incorporating elements from other forms of art such as painting or sculpting into your design.

Taking inspiration from different sources can help you develop unique and creative ideas for your styrofoam cake masterpiece. Remember that while it’s important to gather inspiration from others, ultimately your design plan should reflect your personal style and creativity.

Applying the Icing and Fondant to the Styrofoam Cake

When it comes to decorating a styrofoam cake, applying the icing and fondant is a crucial step in achieving a realistic and visually appealing finished product. Whether you are creating a faux wedding cake for display or a decorative centerpiece for an event, mastering the art of applying icing and fondant to styrofoam is essential.

Prepping the Styrofoam Cake

Before you begin applying icing and fondant to your styrofoam cake, it’s important to ensure that the surface is smooth and free from any imperfections. Use sandpaper or a foam smoother to gently sand down any rough edges or uneven surfaces. This will provide a clean canvas for your icing and fondant application, resulting in a polished final look.

Applying the Icing

Start by preparing your favorite buttercream or royal icing recipe. Use an offset spatula to generously apply a thin layer of icing over the entire surface of the styrofoam cake. The purpose of this initial layer is to create a base for the fondant and help it adhere to the styrofoam. Smooth out any bumps or ridges with a bench scraper or flexible smoothing tool, ensuring that the surface is as even as possible.

Working With Fondant

Once your styrofoam cake has been iced, it’s time to roll out your fondant. Dust your work surface with powdered sugar or cornstarch to prevent sticking, then roll out the fondant into a large, even circle using a rolling pin.

Carefully drape the rolled fondant over your cake, smoothing it out with your hands as you work around the sides and top. Trim off any excess fondant with a sharp knife, then use gentle pressure from smoothing tools to eliminate air bubbles or wrinkles.

How Much Do Cake Decorators Make a Year

By following these steps for applying icing and fondant to your styrofoam cake, you can achieve professional-looking results that will impress anyone who sees your masterpiece.

Adding Decorative Elements to the Styrofoam Cake

Once you have iced and covered your styrofoam cake with fondant, it’s time to add decorative elements to give it a unique and personalized touch. Here are some ideas on how to enhance the look of your styrofoam cake:

  • Edible flowers or plants: Consider adding edible flowers or plants made from gum paste or fondant to give your styrofoam cake a natural and fresh look.
  • Customized toppers: Create personalized toppers using edible materials such as gum paste, fondant, or even chocolate. This could include initials, names, or any other design that reflects the occasion.
  • Hand-piped designs: Use royal icing or buttercream to pipe intricate designs onto your styrofoam cake. This could include lace patterns, intricate borders, or even delicate flowers.

Adding decorative elements to your styrofoam cake allows you to showcase your creativity and make the cake truly unique. Whether it’s for a wedding, birthday, or any other special event, customizing the decorations will make your styrofoam cake stand out.

Remember that while adding decorative elements is an opportunity for creativity, it’s important not to overcrowd the cake. Keep in mind the overall design plan and ensure that each element complements the others without overwhelming the entire presentation. With a careful balance of decorative elements, you’ll be able to create a stunning styrofoam cake masterpiece that will impress everyone at the event.

Tips and Tricks for a Professional Finish

Creating a beautifully decorated Styrofoam cake requires attention to detail and some professional tips and tricks to ensure a polished final result. Whether you are an experienced cake decorator or new to the craft, these suggestions will help elevate your Styrofoam cake decorating skills:

Some tips and tricks for achieving a professional finish on your Styrofoam cake include:

  • Smooth Icing Technique: Use a bench scraper or offset spatula to achieve smooth and even icing on the surface of the Styrofoam cake. Take your time to achieve a flawless finish.
  • Sharp Edges: To create sharp edges on your Styrofoam cake, invest in quality tools such as acrylic fondant smoothers and sharp-edged fondant cutters. This will give your cake a neat and professional appearance.
  • Fondant Shaping: When working with fondant, keep it pliable by kneading it well before rolling it out. Use cornstarch or powdered sugar to prevent sticking, and gently smooth the fondant onto the cake without stretching it too much.

Additionally, for a professional finish:

  1. Attention to Detail: Pay close attention to small details such as piping work, intricate designs, and embellishments. These details can take your Styrofoam cake from good to outstanding.
  2. Practice Makes Perfect: Like any skill, practice is key to perfecting your cake decorating techniques. Experiment with different methods and styles to find what works best for you.
  3. Quality Ingredients: Using high-quality ingredients for icing, fondant, and decorative elements can make a significant difference in the overall look and taste of your decorated Styrofoam cake.

By incorporating these tips and tricks into your Styrofoam cake decorating process, you can achieve a professional-looking finished product that is sure to impress. Remember that practice and patience are essential when refining your skills as a Styrofoam cake decorator.

Displaying and Preserving Your Decorated Styrofoam Cake

Once you have completed decorating your styrofoam cake, it’s important to consider how you will display and preserve your masterpiece. There are several options for showcasing your decorated cake, whether it’s for a special event or simply for decorative purposes in your home.

One popular method for displaying a decorated styrofoam cake is to use a cake stand. There are various types of cake stands available, including ones with pedestals or tiered designs. Choose a cake stand that complements the style and theme of your decorated styrofoam cake. When placing the cake on the stand, be sure to center it carefully and ensure that it is secure.

Preserving your decorated styrofoam cake is important to keep it looking its best for as long as possible. To protect the cake from dust and damage, consider using a clear acrylic display case. These cases come in different sizes and can be purchased at craft stores or online. Place the decorated styrofoam cake inside the case and seal it to keep out dust and other particles.

It’s also important to keep the decorated styrofoam cake away from direct sunlight, heat sources, and high humidity to prevent any damage to the materials used in the decoration process. By taking these steps, you can ensure that your decorated styrofoam cake remains a beautiful centerpiece for years to come.

Display OptionsPreservation Method
Cake StandAcrylic Display Case
Cake PedestalAvoiding Direct Sunlight


In conclusion, decorating a Styrofoam cake can be a fun and creative process that allows you to showcase your artistic talent. By following the steps outlined in this article, you can create a stunning centerpiece for any special occasion or event. From preparing the base to applying the icing and adding decorative elements, every step plays a crucial role in achieving a professional and visually appealing result.

Remember that attention to detail is key when decorating a Styrofoam cake. Take your time to carefully plan out the design and consider incorporating different techniques such as piping, sculpting, or painting to add visual interest. Adding textures, patterns, and intricate details will elevate your Styrofoam cake and make it truly stand out.

Once your masterpiece is complete, don’t forget to proudly display it at your event. Whether it’s a wedding, birthday party, or any other celebration, your decorated Styrofoam cake will surely impress your guests.

Additionally, consider preserving your creation by carefully storing it in a cool and dry place so that you can admire and showcase it for years to come. Remember, with the right supplies, techniques, and creativity, you can create a Styrofoam cake that looks just as good as the real thing.

Frequently Asked Questions

Does Frosting Stick to Styrofoam?

Frosting does not stick well to styrofoam. Styrofoam is not an absorbent material, so the frosting tends to slide off or not adhere properly. It’s best to use a different type of material, such as cake boards or cardboard, for applying frosting.

How Do You Stick Icing to Polystyrene?

To stick icing to polystyrene, it’s important to create a base layer that will adhere well to the surface. Using a thin layer of royal icing or ganache can help the icing stick better to the polystyrene. Additionally, lightly sanding the surface of the polystyrene can provide some texture for the icing to grip onto.

How Do You Cover Styrofoam With Buttercream?

Covering styrofoam with buttercream requires a similar approach to sticking icing onto polystyrene. It’s helpful to apply a thin layer of royal icing or ganache as a base before adding the buttercream layer.

This will ensure that the buttercream has something to adhere to and will help prevent it from sliding off the smooth styrofoam surface. Adding extra care and attention during the application process can result in a smooth and successful buttercream-covered styrofoam display.

Send this to a friend