How to Use KiwiCo Mini Cake Decorating Kit

By Seriously fun hands-on learning for curious kids of all ages | KiwiCo | Published: 2026-10-20

Category: How-to Guides

Learn to build, decorate, and serve pretend cakes with the KiwiCo Mini Cake Decorating Kit. This step-by-step guide covers assembly, piping, and clean-up tips.

Quick answer

Use the KiwiCo Mini Cake Decorating Kit to stack foam cake slices, pipe air-dry clay frosting, and host pretend tea parties—all without real mess.

Why this kit works for young decorators

Real frosting and piping bags can be intimidating for small hands and often lead to sticky counters. The KiwiCo Mini Cake Decorating Kit replaces real frosting with a special air-dry clay that spreads and holds its shape like buttercream, but cleans up easily. The foam cake slices also introduce simple fractions as kids stack and split layers.

What you need before starting

Open the kit and lay out the foam cake slices, piping nozzle, air-dry clay, and any included decorations. You may want a small tray or plate to catch loose crumbs. The clay needs about 24 hours to dry completely, so plan your tea party for the next day.

Step-by-step decorating guide

1. Stack the cake layers: Place the foam cake slices on a flat surface. Stack them in any order to build a multi-tier cake. Use the different sizes to talk about halves and quarters. Make sure the layers sit flat so the cake doesn't wobble when you pipe.
2. Prepare the clay frosting: Knead the air-dry clay until it is soft and pliable. Roll it into a snake shape and load it into the piping nozzle. Squeeze gently to test the flow. If the clay is too stiff, warm it in your hands for a minute. Do not add water.
3. Pipe the frosting: Hold the nozzle at a 45-degree angle to the cake. Squeeze steadily and move in a circular or zigzag pattern. Cover the top and sides as desired. Common mistake: squeezing too hard makes the clay come out in lumps. Use even, gentle pressure.
4. Add decorations: Press any included decorations or extra clay shapes into the frosting before it dries. You can also use small candies or sprinkles (not included). Add decorations right after piping so they stick. Once the clay dries, they may fall off.
5. Let it dry and serve: Place the finished cake in a safe spot and let it dry overnight. The next day, it is ready for pretend tea parties or display. Do not rush the drying time. A fully dry cake is firmer and less likely to dent.

What's in the box

Mini Cake Decorating | KiwiCo: The kit includes foam cake slices, a piping nozzle, and special air-dry clay that looks and spreads like real frosting. Kids can practice piping techniques without the mess of real icing, and the clay hardens overnight for lasting pretend play.
Mini Cake Decorating | KiwiCo