Whether you want a full rainbow effect or a simpler version, here's where to start. Looking for the full party theme? See our party themes guide.
Rainbow Designs
For a fuller unicorn look
- A pastel rainbow drip over a white base cake is the most iconic unicorn cake look.
- A handmade fondant or buttercream horn and ears, plus a floral crown, complete the design.
- Rainbow-colored layers inside the cake add a surprise element when it's cut.
Simple Versions
Easier to attempt at home
- A single pastel color with a horn topper and simple sprinkles still reads clearly as unicorn-themed.
- Store-bought fondant horn and ear kits are widely available and simplify the trickiest part of the design.
- White frosting with a rainbow sprinkle border is a low-effort way to nod to the theme.
Frequently Asked Questions
Does this page include a unicorn cake recipe?
No — this page covers design ideas only. For a real recipe, use a tested baking source.
What's the hardest part of a unicorn cake to get right?
The horn and ears typically require the most skill — pre-made fondant kits are a popular shortcut that still look polished.
What colors work best for a unicorn cake?
A pastel rainbow palette (pink, purple, blue, yellow) over a white base is the most recognizable combination.