Step 1

Divide buttercream into two batches. Color one with black food coloring for covering the cake and the other can remain white or be colored for the filling. I used both white and purple for the cake’s interior.

Step 2

Pipe buttercream onto the first cake layer then add a layer on top and continue building the cake layers. You can add some visual interest by piping rings of different colors for the cake’s interior.

Step 3

Cover the cake with black buttercream and smooth it until the cake is evenly covered using a cake scraper.

Step 4

Either press white confetti sprinkles on top or pipe little dots of white buttercream to create an array of stars on your cake.

Step 5

You can draw the characters onto the cake with a toothpick OR create a stencil by drawing one on a piece of paper then cutting it out. You can even print one out if you’re not a fan of drawing.

Step 6

Mix a smaller batch of buttercream up and divide into 5 or so batches. Most will be for the character’s bodysuits one light gray batch will be for the visors.

Step 7

Transfer buttercream to piping bags and snip the tips off. Try to keep them pretty small so you can pipe the frosting neatly.

Step 8

Pipe the outline for each person then fill in and smooth with a small spatula or knife. Pipe the visor with gray buttercream and repeat for the remaining figures. Chill the cake and smooth any areas that look a bit rough.

Step 9

I used my stencil to cut one sugar cookie for the cake topper, which I decorated with buttercream. You can pipe a figure with candy melts which can be covered in buttercream or just pipe more figures on top of the cake.

Step 10

Serve or store for later.