- To make this unicorn birthday cake, you don’t need a pattern, you simply bake the 9×13 inch cake, cut it in half and use one half for the unicorn’s body.
- Then you cut the remaining half in half again and use one part for the head.
- The final piece of cake is then cut into two legs.
- You’ll have enough cake left over to create the unicorn’s horn or just to enjoy a snack. I did the later.
I wanted the interior of my unicorn cake to be just as magical as the exterior so I created a tie-dye rainbow swirl cake out of a white cake mix.
How to make a Tie-Dye Rainbow Unicorn Cake
- To make a rainbow swirl cake, you divide the cake batter into 6 bowls and color one bowl red, another orange, yellow, green, blue, and purple.
- Then you pipe or drizzle layers of color into the pan.
If you don’t want to go through that much effort, a simple white cake would be just fine.
How to decorate a 9×13 inch cake to look like a Unicorn
- To cover your unicorn cake, pipe frosting using a #21 star tip all over the cake.
- It’s a fun way to decorate a cake like this, but you can simply frost the cake, if you prefer.
- I didn’t go through the effort of making homemade frosting because I really like using Wilton’s Ready to Use Icing. It has a great flavor, is bright white, and pipes really nicely. (Update, Wilton changed their frosting formula, and it is not at all the same as it used to be, so I’d make homemade frosting to decorate this cake.)
Being I wanted my cake on a black background and I didn’t have a black board that was the right size I cut a cake cardboard to fit underneath my cake and set it on a table-sized black board. You can simply place your cake on a large cutting board, serving platter or cake board.
Rainbow Unicorn Cake 