Posted on Leave a comment

Designer Backpack Cake

No time now? Pin it for later!

I am terrified of sculpted cakes. Typically, when someone wants something sculpted, I either turn down the job, or find that the customer didn’t realize the cost involved in that kind of cake. Either way, for the most part, I have gotten away with only doing a few with only minor carving work.

So when the opportunity to make a backpack cake came up, I was hesitant, but thought it sounded like an interesting project to take on. I had a lot of fun making it, but I have no desire to make one of those crazy standing up purse cakes.

So please don’t ask. 🙂

This cake is pretty small, as it only needed to serve about 15 people. So of course, I baked an 11″ x 15″ cake to make sure I had more than enough to work with.

I drew my templates and cut them out of plain white paper, then used them to cut the cake into the sizes I wanted for the backpack and the pocket.

My original pocket was too big, so I cut down the piece a bit. I also cut some of the height off of the pocket.

I decided on an American buttercream for this project. I wanted something a little less sweet than my decorator icing under the fondant.

I crumb coated the bag part first, then added on my pocket and crumb coated that as well.

While the cake was firming in the fridge, I decided to roll out my fondant. I use a fancy double mat (The Mat system from Sweetwise), so I am able to roll out my fondant in advance, while still keeping it covered.

And then this happened…

Yep, I somehow managed to put enough pressure on the metal rod in my rolling pin to actually snap it in half! (arm flex)

I think I have been working on doing it for awhile, but it was still completely crazy to actually break a piece of metal only used for rolling fondant and cookie dough.

Despite what Urban Dictionary may say the definition for the noun (standard, not proper noun, of course) angie is, the actual definition has always been “the act of shearing a key off in a lock”. I guess now it needs to be amended to “the act of shearing a key off in a lock or snapping the metal rod of a rolling pin”.

Trust me on this one, you never want to actually pull an angie, especially the key one. They are really hard to get out of the lock once you do this. Really. Hard.

I should know.

I’ve pulled an angie twice.

Anyway. Moving on…

I managed to get the fondant rolled out with only one handle and set it aside.

Once the crumb coat was firm, I added my final coat of icing and let that chill as well.

Once it was fully chilled, I draped my fondant over the cake and started smoothing.

After that, I added my little loop at the top of the cake.

In order to provide a sticky surface for the wafer paper “fabric” I printed, I used a combination of corn syrup and vodka. I then sprayed my “fabric” with wafer paper conditioner and carefully placed it on my cake.

I decided I wanted the cake to have a shiny, patent leather finish, so I painted the rest of the cake with the vodka/corn syrup mixture as well.

Before I added the top flap of the pocket, I added my stripes and “brand” to the cake. I used a fondant tool to add stitches to the cake edge.

Strips of fondant were added around the sides and “stitched” to give the cake a more backpack type feel.

I added the flap of my pocket with some stitching, and made the zipper detail.

Once the remaining details were painted with vodka and corn syrup, I added a little silver to the “brand” on the bag, and it was finished!

This cake turned out to be much simpler than I originally thought it would be. I might even think about making another one someday. 😉


Don’t worry, I bought a new rolling pin, and it is marble and extremely heavy. 😉 Hopefully, I can keep it for a few years before I break it too.


— Angie

Don’t lose this! Be sure to Pin It!

Don’t miss the latest recipes and posts! Subscribe below:

  1. Hi, Thank you 😊 this is great for our Girl Scouts to earn their badges. I’m looking for the Leave…

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.