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This is the most fun cake that I’ve made so far. My sister and I love Scooby Doo. We grew up on it and other old cartoons thanks to our dad. So for her birthday she had requested a cake featuring the Scooby gang. And a surprise guest too of course! So here is a scooby doo mystery machine cake tutorial for you all!
Fondant or not to fondant?
Personally I think this scooby doo mystery machine cake would’ve been 100% better if it had been decorated with just fondant. But my sister hates fondant. And since it’s her birthday cake I couldn’t use it to decorate the cake. Well except for the two small pieces that I painted the gang and Mr. Hyde on. Thankfully she lived with it after complaining for a few minutes. The chocolate did come out very well though after a few trial and errors. It’s definitely not the best looking cake, but it is the most fun. It being Scooby Doo makes it even better.
Make it extra!
I made this cake into a pinata cake and filled it with a bunch of sprinkles and some chocolate chips too. But I think it would be even more fun if it had had some of those graham cracker Scooby snacks and fruit snacks too! Make it completely a Scooby Doo theme I think! Or you could go for the glutenous ways of Scooby and Shaggy and filled it with fun food shaped gummy candy. Little pizzas and ice cream cones would have been a hoot in this mystery machine cake!
Use these stencils to accurately carve out the mystery machine into the correct shape. I also included stencils to draw out the gang and Mr. Hyde as well if you want to make it look exactly like I made the cake. This is completely optional though! The stencils also include notes on what each stencil is used for and how to use them.
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mystery machine cake tutorial
- wax paper
- ziplock/piping bags
- candy melts light blue, green, white, black, and orange
- 4 layers cake use a 9 x 13 inch cake pan. any flavor
- 1 batch vanilla frosting tinted light blue
- white fondant optional
cake filling ideas
- scooby snacks graham crackers
- scooby doo fruit snacks
- once the cakes are cooled, start by filling and stacking the first 3 layers of cake. in the center, cut out a decent sized whole. fill this whole with whatever you like, or use some of my ideas!
- place the last layer of cake on top and do a crumb coat. place the cake into the fridge for about 30 minutes to chill.
- use the stencils i’ve provided to cut the cake to be the exact shape. i used some pins to help keep the stencils in place while i trimmed. if you make a mistake, just use the cake trimmings mixed with frosting (like making a cakepop) and form it into the shape you want.
- once the cake is formed, do another crumb coat and place the cake into the fridge to chill.
- while the cake is chilling, use the other stencils and the candy melts to trace the mystery machine designs to put onto the cake. let dry
- while the chocolate is drying, take the cake and do a final thick coat of frosting on the cake.
- carefully peel the chocolate designs off the wax paper and place onto the designated areas of the cake.
- if you have the artistic ability or a projector then paint the scooby gang on some fondant. do the same thing for the back of the cake with mr. hyde.
- eat and enjoy!